UC-NRLF The Dahlia ITS HISTORY AND THE LIBRARY OF THE UNIVERSITY OF CALIFORNIA PRESENTED BY PROF. CHARLES A. KOFOID AND MRS. PRUDENCE W. KOFOID THE DAHLIA CACTUS DAHLIA. "Mrs. J. J. CROWE.' Frontispiece. THE DAHLIA ITS HISTORY AND CULTIVATION BY RICHARD DEAN, F.R.H.S. ROBERT FIFE, F.R.H.S. JOHN BALLANTYNE STEPHEN JONES WILLIAM CUTHBERTSON, F.R.H.S. LEONARD BARRON WITH ILLUSTRATIONS OF THE DIFFERENT TYPES AND A VERY COMPLETE LIST OF VARIETIES IN CULTIVATION IN 1902 iLonlion MACMILLAN AND CO, LIMITED NEW YORK : THE MACMILLAN COMPANY ROTHESAY : DOBBIE & CO. 1903 A II rights reserved SB4-13 CONTENTS PAGE INTRODUCTION, BY WILLIAM CUTHBERTSON . -.1 HISTORY OF THE DAHLIA, BY RICHARD DEAN . . 4 BOTANY OF THE DAHLIA, BY JOHN BALLANTYNE . . 19 PROPAGATION OF THE DAHLIA, BY STEPHEN JONES . 28 CULTIVATION OF THE DAHLIA, BY ROBERT FIFE . . 35 EXHIBITING THE DAHLIA, BY STEPHEN JONES . . 51 CATALOGUE OF VARIETIES . ... . . 56 DAHLIA ANALYSIS . . ' . . '. . 98 SELECTIONS FOR SPECIAL PURPOSES . . . . . 104 THE DAHLIA IN AMERICA, BY LEONARD BARRON . 107 THE FUTURE OF THE DAHLIA, BY WILLIAM CUTHBERTSON 118 ILLUSTKATIONS Cactus Dahlia . . / . Frontispiece PAGE Show Dahlia . . . 5 Pompon Dahlias ...... .9 Single Cactus Dahlias . 1 ... .13 Single Dahlias . . . . . . ... - 21 A Dahlia Cutting as taken from the Plant. The same Cutting prepared for insertion in the Pot . 29 Dahlia Tube (Wood). Dahlia Cup (Tin). How to fix a Bloom in the Tube. An Exhibition Stand of Twelve Show Dahlias . . . . . .. .50 A Bunch or Spray of Pompon Dahlias . . . .52 INTRODUCTION THE Botanist reveals to us the wonderful structure and mechanism of plants. By the aid of the microscope he leads us far into the intricacies of their nature, before which we stand in wonder and reverence. The Florist differs from the botanist in his relation to plants. The plant as it is is the province of the botanist. The plant as it can be developed is the province of the florist. He takes advantage of its inherent susceptibilities in certain directions and pro- fits by them ; and there is no better illustration of this than the subject of this volume. It was long considered that the botanist and the florist had little or nothing in common, but this idea, like so many other old-fashioned ones, has been given up. The light which the botanist can throw on the subject is invaluable to the raiser of new varieties of flowers, and surely he is best equipped for growing plants who best understands their structure. But there is an equipment for Flora's service which even science* cannot give, which wealth cannot buy, and which influence cannot command, and that equipment is Love — a love akin to devotion. A well-known present-day writer * tells us that " in the 1 Birrell in Obiter Dicta. 1 The Dahlia pleasant realms of poetry no liveries are worn, no paths prescribed ; you may enter where you will, stop where you like, and worship whom you love." So it is in the service of Flora ; but to enjoy flowers to the full one must do even more than love them — one must grow them from the tiny seedling or cutting to the fully developed plant. An American writer,1 after describing how he planted his seed with his own hands, goes on to say, " My garden was of precisely the right extent. An hour or two of morning labour was all that it required. But I used to visit it and revisit it a dozen times a day, and stand in deep contemplation over my vegetable progeny with a love that nobody could share or conceive of who had never taken part in the process of creation." This is the indescribable pleasure enjoyed by every true florist, and to come under its spell it is not necessary to engage in large operations. A pole of land is likely to yield a richer harvest of enjoyment than an acre ! It is one of the most gratifying features of our day that this love for flowers has become so general. Apart from the elevating and refining influences which are inseparable from a true appreciation of nature in any form, this " love for flowers " has another aspect It creates and sustains a demand which is an important item in our home trade, Well-known firms are found devoting their whole time and entire resources to the cultivation of one or two particular classes of plantsr and national societies exist for promoting the cultiva- tion of special flowers — such as the National Eose Society, the National Chrysanthemum Society, the 1 Hawthorne, in Mosses from an Old Manse. Introduction National Carnation Society, the National Sweet Pea Society, and the National Dahlia Society. All these are indications of healthy activity in floricultural circles. The Dahlia has long been in the front rank among what are known as florists' flowers. It is most amen- able to cultivation, and responds to proper care and good treatment as few flowers do. It is useful in many positions. For securing bold effects on large lawns, clumps of Dahlias cannot be surpassed, while for introducing colour into shrubberies during summer, or for forming back lines in broad borders, few plants are equal to them. It is hardly necessary to say anything regarding their merits as cut flowers. From July right on till frost comes, enormous quantities are available, of every conceivable shade of colour except blue. They- are also most amenable to forcing, and can without difficulty be had in flower under glass in May. At the Temple Show of the Eoyal Horticultural Society in London in May 1896, fhere was a beautiful stand of Dahlias set up for exhibition by Messrs. Dobbie and Co. In the cottage garden of the working man, in the villa garden of the merchant, in the extensive grounds of the nobleman, the Dahlia will grow and flourish witli equal fortitude, and produce in abundance its glorious blooms to minister delight and pleasure. HISTOEY OF THE DAHLIA DAHLIA VARIABILIS, a very variable species, — hence its name, — is the one commonly believed to have been the first introduced to this country. It is .a native of Mexico and Central America. It received its generic name after Dr. Dahl, a Swedish botanist and pupil of Linmeus. A competing name, "Georgina," ran "Dahlia" a race for some time; and so late as 1832 it can be found in an Index to London's Gardeners' Magazine. The earliest known description of the Dahlia is that of Francesco Hernandez, physician to Philip II. of Spain, who wrote four books on the plants and animals of New Spain ; and in one of these books appears an illustration of I), variabilis. Then for a space of 130 years the Dahlia seems to have been lost to writers until 1787, when a Frenchman, one Nicholas Joseph Thierry de Menonville, was sent to America to secure the cochineal insect, and in that year published a treatise in which he described the Dahlias he had seen in a garden near Guaxaca, " In the year 1789, Vincentes Cervantes, director of the Botanic Garden at Mexico, forwarded seeds of the Dahlia to the Koyal Gardens at Madrid, then under the direc- tion of Abbe Cavanilles. The Marquis of Bute was- 4 SHOW DAHLIA. History of the Dahlia at this time Ambassador from England to the Court of Spain, and the Marchioness, who cherished a true sympathy with floriculture, obtained some of these seeds, which she cultivated in pots in a greenhouse, but failed to keep them beyond two or three years." " In 1802 an English nurseryman, John Eraser, of Sloane Square, a collector of American plants, obtained from Paris some seeds of Dahlia coccinea, which flowered in a greenhouse in 1803 at his nursery, and supplied a subject for a plate in the Botanical Magazine, which secured to the plant a proper place in the English Garden" (Shirley Hibberd). In 1804 Lady Holland, who was then at Madrid, sent home seeds, it is believed, to Holland House, Kensington, where plants were raised and bloomed. When they were in flower, her husband, Lord Holland, wrote to his wife as follows :— k< The Dahlia you brought to our isle Your praises for ever shall speak, 'Mid gardens as sweet as your smile, And in colour as bright as your cheek." Mr. Geo. Nicholson, in his Dictionary of Gardening, informs us that the plants raised in Holland House in 1 804 were lost, and that a third stock was brought from Erance in 1815, — probably flowers showing signs of doubling, as at this time double Dahlias began to appear. From this time the history of the flower rises to a kind of stately march. It acquired extensive popularity, and Dahlia exhibitions were held in many parts of the country. 8 The Dahlia THE IMPROVEMENT OF THE DAHLIA In the third volume of the Transactions of the Royal Horticultural Society it is stated that " the merit of first carefully attending to and cultivating the Dahlia belongs exclusively to the continental gardeners, for though we in this country received the varieties originally imported to Europe almost as soon as the French and Germans, yet, if not lost, they nearly went out of notice with us ; whilst in France and Germany they meanwhile increased as much in number as in beauty, and persons who visited the Continent on the return of peace in 1814 were surprised with the splendour and variety of the Dahlias in the foreign collections. In the winter of that year several roots were imported to this country, and since that period our home growers have made up for former neglect, as is sufficiently evinced by the splendid exhibition of these flowers in the public and private gardens near London." The first double or semi - double flowers were obtained about the year 1814 by M. Donkelaar of the Botanic Gardens, Louvain ; and from three plants which bore double flowers many varieties were raised, and were imported into this country during the winter of that year. From 1815 and onwards great activity was shown in raising new varieties, and though the single type found some favour with raisers and growers, earnest efforts were put forth to develop the finest double flowers until the forerunners of the present superb types were reached. POMPON DAHLIAS. History of the Dahlia 1 1 THE TYPES OF THE DAHLIA By the florist Dahlias are divided into several sections, viz., Show, Fancy, Pompon or Bouquet, Cactus or Decorative, and Single. The two former run so closely the one into the other, and the dis- tinction between them is so artificial, that they are now practically fused into one, though in catalogues the varieties are still ranged under the heads of Show and Fancy. THE SHOW DAHLIA This section comprises all self-coloured and all shaded flowers, such as the Prince of Denmark, which has a maroon — almost a black — shading thrown over a deep wine crimson ground ; and all flowers having petals of a pale ground colour, edged with pink, rose, mauve, purple, crimson, maroon, etc. ; J. T. West and Miss Cannell may be cited as typical varieties. THE FANCY DAHLIA This is simply the large rounded Show or Ex- hibition Dahlia in a later form of development. The reason why the two sections were divided is found in the fact that the Fancy type was later, in point of time, in appearing, and for a number of years its varieties were inferior both in size and in outline to those of the Show type. The first Fancy Dahlias appear to have originated with Count Lelieur of Paris. He succeeded in raising some striped and shaded single flowers, and from these, it is believed, the present 1 2 The Dahlia race of Fancy Dahlias has descended. Of this we may be certain — that the earliest forms of the Fancy Dahlia came from the Continent. Two or more colours are necessary to a Fancy Dahlia. There are striped and there are tipped varieties, but the latter are occasionally striped also. In the case of the edged Show Dahlia, the colour on the petal edges is always darker than the ground ; in the Fancy Dahlia the reverse holds good. Thus, a white, yellow, or any pale ground flower, edged or laced with a dark colour, after the manner of the Picotee, is simply an edged or laced Show Dahlia ; but when the disposition of these colours is reversed, — when the petals of a dark or yellow ground flower are tipped with a light colour, as, for instance, Mrs. Saunders, which is yellow tipped with white ; of Peacock, which is crimson tipped with white, — the variety is regarded as a Fancy Dahlia. When the ground colour is light, with a dark edging, as in the case of Miss Cannell, it is a Show Dahlia. Striped flowers, no matter what the ground colour may be, are always Fancy Dahlias. All the best Fancy Dahlias produced within the last twenty years have been of English origin. It is the custom at some small country flower-shows to admit all tipped and edged Dahlias as Fancy Dahlias ; but this is invariably permitted by judges who are imperfectly acquainted with the technical distinction between the two types. THE POMPON OR BOUQUET DAHLIA This type, of which we have so many beautiful varieties in the present day, is of German origin, and SINGLE CACTUS DAHLIAS. Raised by the late E. J. LOWE, F.R.S. Introduced to commerce by Messrs. DOBBIE & Co. in 1893. History of the Dahlia 1 5 dates from about 1808, when Hartwig of Karlsruhe obtained a double variety from the single scarlet Dahlia coccinea. The Germans favoured this small form, which obtained the name of Liliputian, on account of the small size of the flowers, and not because of its dwarf growth, for the first varieties obtained from it introduced to this country were of very tall habit. Hence the Pompon varieties have been known as German Dahlias. Our English florists, especially of late years, have greatly improved this type in the newer varieties ; they are now of dwarf and compact growth, singularly free of bloom, admir- ably adapted for adorning the flower garden, and invaluable for all decorative purposes. i THE CACTUS DAHLIA This singularly novel type put in an appearance in England in 1880. Its history and introduction to this country can be stated in a few words. In the year 1872, Mr. J. T. Vander Burg, of Juxphaar, near Utrecht, received a box of flowers from Mexico ; but, by reason of delays in the transit, the contents were for the most part found on arrival to be rotten. All that had roots, or seeds apparently possessing vitality, were sown ; and, among those which grew, was one which produced a small tuberous root, and it eventually proved to be the Cactus Dahlia. It was subsequently named Dahlia Juarezi, after Juarez, a President of the Eepublic of Mexico. By 1874, a good stock of plants had been obtained, and it eventually passed into the hands of Messrs. Anthony Eoozen and Sons, a firm of Dutch nurserymen. Plants of this Dahlia c 1 6 The Dahlia were obtained by the late Mr. W. H. Cullingford, and from him it passed into the hands of Mr. Henry Cannell of Swanley, by whom it was exhibited for the first time at the Alexandra Palace, Muswell Hill, on the 3rd of September 1880, and immediately after, at one of the meetings of the Eoyal Horticultural Society. It was at once seen that there were possibilities of development in this interesting stranger. New forms soon began to appear, and at the present time there are many superb varieties of a number of shades and combinations of colour, but all exhibiting the shape of the original introduction, which obtained the name of Cactus from its resemblance in colour to the vermilion of Cereus speciosissimus — the Showy Cactus — a designa- tion which was at once adopted and is now universally recognised. The habit of growth is undergoing con- siderable improvement, and many of the newer sorts are admirably adapted for garden decoration. THE DECORATIVE DAHLIA These may be regarded as intermediate forms of the Show Dahlia, brought into notice by the intro- duction of the Cactus type ; but few of them have any pretensions to the true Cactus character, and with the wonderful improvement seen in the latter, many will soon go out of cultivation. They certainly furthered the employment of the Dahlia as a decorative plant in our gardens, the freedom of bloom of some of the varieties being their chief recommendation. In America Decorative Dahlias are most popular at the present time. History of the Dahlia 1 7 THE SINGLE DAHLIA The re-introduction to popular notice of this type dates from 1880, when Mr. Alfred Salter brought to one of the meetings of the Koyal Horticultural Society flowers of the Single Dahlia coccinea. Almost simul- taneously appeared D. lutea, yellow, and an old variety named Paragon. From these seeds were obtained, the Single Dahlia became immensely popular, and a great number of varieties were obtained and are still being raised, including some charming striped and tipped varieties known as fancy Single Dahlias. Their fugacious character militates against the use of the flowers for decorative purposes. THE SINGLE CACTUS DAHLIA This is of comparatively recent development, but for all kinds of decorative work it has an important future before it. The first varieties were raised by the late Mr. E. J. Lowe, F.E.S., and passed into the hands of Messrs. Dobbieand Co., Kothesay, in the year 1891. Since then the type has been undergoing rapid improve- ment, and when better known its value will be widely recognised for every purpose for which cut flowers are required. A more graceful flower for dinner-table and other decorations, it is hardly possible to conceive than the Single Cactus Dahlia. POMPON CACTUS DAHLIAS A group of dwarf, free-blooming, small-flowered varieties is being produced, which promises to be valu- able for market and decorative purposes ; the large 1 8 The Dahlia blooms of the exhibition varieties, often on weak stems, being found unsuitable for employment in such ways. TOM THUMB DAHLIA This is a miniature race of round-flowered Single Dahlias raised by the late Mr. T. W. Girdlestone, M.A., and introduced by Messrs. Cheal and Sons some years ago. They grow from twelve to eighteen inches high, and have proved of great value in the flower garden, forming dense bushes, and blooming with re- markable freedom. QUILLED OR ANEMONE-FLOWERED DAHLIAS During the past two years the Continental florists have sent to this country representatives of a race of dwarf-growing dahlias, having flowers with a circle or two of ray florets and the centre a cushion of quilled florets resembling a quilled aster or an anemone- flowered Pompon Chrysanthemum. They need some improvement if they are to become popular. \ THE COLLARETTE DAHLIAS This is a type of Single Dahlia having, issuing from the yellow disc, which is in the centre of the flower, a circle of small white or primrose-coloured short florets. Two varieties have been sent from the Continent, viz. President Viger, crimson with a white collar; and Joseph Gougon, reddish orange with a collar of orange florets. They are very free-blooming and produce their flowers on long stems thrown well above the foliage. BOTANY OF THE DAHLIA THE Dahlia belongs to the largest of all the orders, namely, Composite, which contains about 10,000 species. The order is divided into a certain number of tribes, the Dahlia being classed in the Helian- thoideai, or that to which the Sunflower and our wild Bur-marigolds belong. These tribes are again divided into genera, of which the Dahlia forms one, having received its generic name from the Abbe Cavanilles, who first scientifically described it, and named it the Dahlia in honour of his friend Dahl, the Swedish botanist. Many species of the Helianthoidese have their leaves opposite, a characteristic which obtains in the Bur -marigolds, the only representatives of the tribe indigenous to Britain. The Dahlia, it is said, grows wild in sandy meadows in Mexico, whence it was brought to Europe about a hundred years ago. It is perennial in its growth, but flowers freely from seed the first year. As it cannot resist frost there is no chance of its ever establishing itself as a garden escape in this country. One night's frost in autumn is sufficient to blacken and destroy the bloom and foliage of every plant exposed to it. It has been known to appear in some places a second 19 2O The Dahlia year from roots left in the ground, but this can only happen under special circumstances in some mild and well -sheltered locality. Plants may succeed for a year or two in growing from seed ; but, sooner or later, the frost puts an end to their existence, so that their growth in a semi- wild state cannot be permanent. The root is tuberous and fasciculate — that is, the tubers all spring from the collum or neck at the base of the stem. The tubers vary considerably in size and shape in the different species and varieties. Ii is said that the roots of the Dahlia are used by the native Mexicans for food. Would it not be possible to use the surplus roots in this country for a similar purpose ? They must contain a large amount of nourishing matter, which might thus be turned to a most useful and profitable purpose. The stem is woody and branching, and has short, slightly hispid, hairs. In growth it is inclined to be somewhat decumbent, then ascending, which allows it to send up a number of strong branches. The leaves are opposite, as already indicated, and are without stipules. The leaf-stalk or petiole is naked in some species, but in others it is winged. The leaves in the cultivated varieties are exceedingly variable, being entire, lobed, or pinnate, with the leaflets often pinnatifid. In some cases they are almost bipinnate. The Cactus Dahlias have their leaves more broken up than the "Show" and "Pompon" varieties. The margins are serrate and the serrations finely spinulose, more especially in the Cactus varieties. The under surface of the leaves is also slightly roughish. The peduncles or flower-stalks spring from the axils SINGLE DAHLIAS. Botany of tke Dahlia 23 of the leaves, generally in pairs, and bear a single flower each, although there are instances on record when, occasionally, the double dark red variety has borne two flowers on a peduncle. This is, however, of rare occurrence. The primary involucre is composed of five green persistent fleshy bracts, which are so much reflexed that they point downwards. They are ovate or ovate- lanceolate in form in the P,ompon and Show varieties, but linear -lanceolate in the Cactus. The secondary involucre is composed of the outer row of bracteoles or palese, each ray and floret having a bracteole at its base, which is equivalent to a calyx. Very few species in Composite have this scale or calyx, which is therefore quite a distinguishing feature of the Dahlias, its more common form being that of simple or branched hairs termed the pappus. These scales form a protection to the young florets in the same way as an ordinary calyx. The outer row is generally composed of eight or nine scales, green at the base, and transparent from the middle upwards. The inner rows are all transparent, but some of the more outward ones are slightly tinged with green. The Single Dahlia is, no doubt, representative of the plant in its original wild state, but, by cultivation, the florets are all, or nearly all, developed into rays, in the double varieties. The Dahlia rays are folded in a peculiar manner, the one side overlapping the other. They are quite flat in bud, but assume after- wards a round form, thus giving the tubular appearance so characteristic of some of the varieties. This tubular arrangement is best seen in the double show blooms. In the single varieties the ray is folded in the same 24 The Dahlia manner when young, but, when it is fully expanded, becomes either flat or saucer shaped and a little reflexed at the tip. The tendency of the ray to become revolute is seen wonderfully developed in the Double Cactus Dahlias. In these varieties the ray while young is also folded inwards and flat, but, when fully developed, is rolled backwards so that they too have quite a tubular appearance. These rays are also of various lengths, which make the blooms look irregular. The florets of the Dahlia are perfect, and the tube or corolla is five-lobed, and contains the five anthers and one pistil with a double stigma. The five anthers are untied into a tube, and the stigmas have to force their way through them. In doing so the anther tube is carried upwards out of the floret by the force of the stigmas. After the stigmas get completely through the tube, the latter is withdrawn inside the floret again by the elasticity of the anther filaments. The stigmas are large, and covered on their outer sides with long transparent hairs about half-way down from their upper ends. Further down are the papilhe of the stigmatic surface proper, arranged in two rows. These papillae seem gradually to change into hairs as they ascend. This arrangement of the stigma is similar to that of the asters. The seed or fruit is from a quarter to half an inch in length and of a dark colour, with a few short white hairs scattered over it. During the maturing of the fruit the scales or bracts all close compactly together, forming a complete protection to it. They are per- sistent to the fruit until it is dispersed. They must play an important part in the distribution of the seed, Botany of the Dahlia 2 5 as they are so large that in a hreeze of wind they will carry it a considerable distance. The adaptations which many species in the Composite have for helping them in their distribution are most wonderful , and without doubt account for the fact that the Composite contains a larger number of species than any other order. The fruit in many instances is peculiarly well-adapted for being distributed either by the wind, as in the Dandelion and Dahlia, or by birds and animals, as in the Bur-marigold. And not only are the seeds of many species provided by nature with the means to carry them long distances where they may find new habitats, but, when they have reached their destination, they are able, by means of barbs, to work their way down through grass or any other obstruction into the soil. In the Dahlia the receptacle is convex while the plant is in flower, but becomes flat and often concave in fruit. The Dahlia may under certain conditions be self- pollinated. As already stated, the stigmas are large and have to force their way through the staminal tube, and in doing so rupture the anther cells. When they emerge from the tube they carry up with them on their stigmatic surfaces large quantities of the pollen,, thereby exposing it to the necessary conditions for causing fertilisation. To ascertain whether the Dahlia is self - pollinated or not, a number were isolated with a fine netting so as to exclude all, except the very smallest insects, and in each case the plants flowered freely and set seed. In this locality the Dahlia is visited by the red-tail and other bees, which will cause cross pollination and thus account for the 26 The Dahlia great variety of colours in blooms of plants raised from seed. Probably other insects besides bees visit the Dahlia, but so far as we are aware there is no record of it. The Dahlia is regarded as the symbol of " in- stability," because it was introduced to Europe during those great social and political upheavals which culminated in Waterloo. But may it not with equal propriety be taken as a type of instability because of its great variability, and the readiness with which it lends itself to producing new varieties through the agency and ingenuity of the florist. In the " Double " all the florets, or nearly all, are developed into con- spicuous rays. There can be little doubt that the changed conditions under which the plant is cultivated by gardeners has much to do with this variability. Many plants, however, when cultivated under similar conditions do not show the same readiness to sport in so many directions. It is owing to this changeable character that the plant has become so deservedly popular. An enormous number of varieties are already in the market, and there seems to be no limit to them. New ones appear every year. This naturally leads us to ask, " Have all these varieties of ' Single/ ' Double,' ' Pompon,' and ' Cactus,' been raised from a single wild species ? " Evidently so. Some authorities are inclined to regard the two or three wild varieties as separate species, but strong doubts seem to be entertained regarding this, as their dis- tinctive characters are not permanent enough. At first sight one would be inclined to think the " Cactus " varieties had been developed from a different species because their foliage is more broken up, the primary Botany of the Dahlia 2 7 bracts of their involucre narrower, and also the scales or palese. But notwithstanding these differences there is every reason to believe that they have all been developed from a common wild species. The Double Cactus evidently was partially so developed in Mexico before it was introduced to Europe. And the so-called Single Cactus Dahlias were raised by Mr. E. J. Lowe. F.B.S., of Chepstow, from an ordinary single variety, Stella bianca by name, crossed with pollen of D. Mercki. It would have proved most interesting had there been a reliable record kept by those who have raised the different forms of this most interesting plant, but horticulturists are not noted for keeping correct records of their doings, and consequently many im- portant facts as to how new varieties of plants are developed are lost to the scientific world. PKOPAGATION OF THE DAHLIA UNDER this heading I will first deal with propagating by cuttings from the roots that have been safely stored during the winter. In private gardens, where the quantity of plants required is not extensive, and the room in spring-time is very limited, it is advisable to pot up the roots early in February, using pots six or seven inches in diameter. The roots will probably be too large for the pots, in which case the tubers can be reduced to the proper size by cutting (this can be done quite safely without fear of their rotting). After inserting the root, fill up the pot with soil, leaving the crown of the root an inch or so clear of the soil, and plunge in a bottom heat of about 70°. Better than pots, for the old roots, if such con- venience is to be obtained, is a propagating bed near the glass — or along the front of a vinery or plant stove. A bed of soil can be made up and the roots laid in, carefully attending to the labelling — and treating as recommended for the roots in pots. In from seven to nine days the eyes will begin to swell, then give a good soaking of water of the same temperature as the house. In about fourteen days from first submitting the root to heat, the shoots will have grown about three inches in length. 28 A Dahlia cutting as taken from the plant. The same cutting prepared for insertion in the pot. Propagation of the Dahlia 31 These should be removed with a sharp knife and thrown away, as, although they look fine cuttings, they rarely strike, and never make good plants. When the growth is thus far advanced, soil and pots should be prepared for rooting the cuttings in. Almost any sweet soil will do — provided there is no manure in it ; but I prefer to use a stiffish maiden loam, with a layer of sharp sand on the top. When the next lot of shoots are about three inches long, they may be taken from the plants. If a few plants of each variety only are required, the operator can take the cuttings off with a heel or little piece of the old root attached ; but if a larger quantity be wanted, care should be taken not to cut within an inch of the base, thus leaving the cluster of eyes round about it intact. These eyes will in a few days push up shoots ready to be taken off again as cuttings. By some people, gardeners as well as amateurs, an extraordinary value is put upon the heel, and they maintain that it is impossible to root cuttings that are taken off without it. This is a piece of old-fashioned nonsense, and any sceptical person can easily be convinced that it is so by paying a visit in March to any leading Dahlia nursery. Thousands — I might safely say millions — of clean cuttings are rooted every season. I have no difficulty in rooting 90 per cent of such. Again, the very stoutest cuttings are often selected under the impression that they make the best plants. This is folly. The best cuttings are those about the thickness of a slate-pencil. The thick ones will usually be found hollow and rarely strike. I often put in the very thinnest cuttings of scarce varieties, and with care they make fine plants. D 32 The Dahlia After severing the shoot from the plant, take the cutting in the left hand, between linger and thumb, and, with a sharp knife, cut just below the joint, afterwards removing the leaves on either side, and insert in the soil up to the next joint. If single pots are used those of two inches in diameter will be large enough, but a more economical use of the bottom heat may be made by placing four cuttings in a three-inch pot, keeping them close to the edge, as they take root more readily against the side of the pot. In taking off the cuttings be careful to label one variety before taking off another. Omitting this is often a prolific source of mistakes. As soon as the cuttings are off and dibbled in the pots (always use a blunt stick, and see that the base of the cutting is at the bottom of the hole), before they have time to flag, plunge the pots to the rim in a bottom heat of 70° — no more. Whatever forcing place the cuttings may be placed in, the glass over them should be heavily whitewashed ; then there is no fear of forgetting to shade them when a burst of sunshine conies along. It is most important that the frame or propagating pit has plenty of air, for nothing is so destructive to Dahlia cuttings as a close stagnant atmosphere. Air should be admitted night and day freely, and a sharp bottom heat kept up, otherwise the leaves will turn black and damp off. When cuttings are first put in, give them a good soaking of water, and, when necessary, afterwards dew them over with a syringe or fine rose. If the soil becomes dry, give another good soaking, always using tepid water. In about three weeks the cuttings will be all rooted, and the pots will be ready for removing to a cool Propagation of the Dahlia 33 house near the glass to harden a little before being potted off. This is an important operation, for which soil should be prepared some time before. A good mixture is two parts turf or loam — one of leaf soil, one of spent hot-bed manure with a dash of sand. Tor this potting 2^ inch pots are quite large enough. After placing a little rough stuff in the bottom, fill up the pot a third full with soil, and place the roots carefully on this, keeping the plant to the centre. Fill up the pot with soil and press moderately firm. Then place in a warm frame with bottom heat, if possible, or a warm greenhouse will do. Keep the plants close to the glass and shaded for a few days, giving plenty of air afterwards. Great care must be taken to keep the plants sturdy at this stage, for if they become drawn now it is impossible to make good plants later on. For after treatment see chapter on " Cultivation." PROPAGATION BY DIVISIONS If facilities are not at hand for propagating by cut- tings and yet an increase of some varieties is required, a simple method is to start the roots into growth in March. This can be done by placing them on a stage in a warm house and watering them, and, when the shoots are about an inch long, dividing the crowns into three or four pieces, taking care to have a shoot or more on each piece. Cut the bottom off the tuber, so as to make it go into a four or five inch pot, in which pot it. Place in a hot frame or warm corner of a greenhouse, shade for a few days, and, when well rooted, place in an airy position, and gradually harden off as recommended for other plants. 34 The Dahlia PROPAGATION BY SEED Sow in March in a warm greenhouse or on a hot- bed, prick off into boxes when in the second leaf, pot off singly into three -inch pots at the end of April, and treat as directed for plants from cuttings. Seed- lings always make a brave show, and are interesting because of the probability of their producing, if the seed is from good varieties, some improved form worth naming and introducing to the world. They are easily managed, and are very suitable for lady gardeners. CULTIVATION OF THE DAHLIA SITUATION IN selecting a place likely to prove suitable for the cultivation of the " Queen of Autumn," preference must be given to land having a southern exposure, which, if it slope naturally in that direction will be all the better. It is desirable to have shelter from all winds ; from the east and north, which so often, even in the month of June, prove a scourge to the plants when young and tender ; and from the south and west, which, in gales and storms, are apt to work disaster among them when in flower. In exposed situations Jerusalem Artichokes planted on the weather side have been found to make a capital protection. They are usually six or seven feet high when their services are most in request. The Artichoke tubers may be planted in single or double rows, the sets being from twelve to eighteen inches apart. But, al- though shelter is so much to be aimed at, there must be no shade if first-class results are to be the order of the day. The grower will soon get to know that the nearer to a supply of water his plants are, so much the better will it be for the plants, and for the person who attends to them. 35 36 The Dahlia SOIL A rather heavy clayey loam, thoroughly well- manured, is, without doubt, the best of all soils in which to grow the Dahlia to perfection. In such a soil the plants are usually of a dwarf and sturdy habit — ideal plants, in fact, to produce blooms of grand size and desirable substance. In land naturally light and rich there is a tendency to strong, soft, watery growth, which not only gives additional trouble in staking and tying, but is the forerunner of small and inferior flowers. In order to improve such a soil the best plan is to spread clay loam over its surface during the early winter months, so that it may get the benefit of frost and exposure previous to being in- corporated with the natural surface soil. PREPARATION OF THE SOIL Deep culture is, of course, advisable ; and what is knowrn as bastard trenching is perhaps the best method. In all cases see that there is proper drainage. Jf this be neglected, trenching in a clay soil may prove worse than useless, merely serving to provide a re- ceptacle for water. Digging operations cannot be commenced too early in the autumn. Good results are, however, often obtained by spring cultivation, as the season is far advanced before the plants become the tenants of the soil. In any case turn the ground over several times, and each time leave it as rough as possible that it may get all the benefits to be derived from exposure. The manner in which the plants are to be grown, and the distances apart at Cultivation of the Dahlia 37 which they are to be placed, must to some extent decide the methods of manuring to be adopted ; but it may here be said that the over-manuring of Dahlia ground is not an everyday occurrence. PLANTS For the purpose of this article I shall assume that the propagation of the Dahlia ends and its real culti- vation begins when the plants are transferred from the small pots in which they have been rooted to the larger -sized ones, which, under ordinary treatment, should supply their wants until the planting-out season comes round. At the same time it will be readily admitted that an important part of the culture has already taken place at the earlier period treated of in the previous chapter on "Propagation," and that stout healthily grown plants are always to be preferred to weakly ones as a foundation whereon to build success. As the necessary preliminary to the cooking of a hare is the catching of the same, so the necessary preliminary to training up Dahlias in the way in which they should grow is the purchasing or other- wise procuring of the plants. In the good old days of Dahlia growing, when the Cactus and single-flowered varieties were unheard of, the custom of the trade was to send out plants in pots, by rail or other convenient method, during the first week in May. Even now this deeply-rooted system dies hard. The advent of the Parcel Post, however, has struck a heavy blow at many old customs, and in no case, perhaps, has created such a revolution as in the work of the Nurseryman and Florist. The would-be cultivator should first fix 38 The Dahlia upon the number of plants he will require. He should then put himself in communication with some firm that makes the growing of Dahlias a specialty. Such a firm is likely to have all " up-to-date " varieties ; and, being jealous of its own reputation, is likely to serve its customers well. If he has a friend who can give him trustworthy information as to the kinds he ought to grow, that friend may prove to him a " friend in need " ; if not, he had better leave the selection to the seller. If he selects his own varieties, he should always add an extra name or two, lest any of those he has chosen should not be ready. All orders for Dahlias should be placed in the sellers' hands as early in the season as possible. The buyer who attends to this gets the best of the plants, the cream of the varieties, and delivery possibly a fortnight earlier than he could otherwise have done — an advantage not to be despised in late districts. He may also secure some of the choicer varieties, which do not keep well, are consequently scarce, and could not be had later. In this, as in other provinces, it is the early bird that gets the early worm. Supposing that the order has been placed in the hands of a firm some considerable distance from the buyer's home, there is no safer mode of transit than by Parcel Post. The plants when unpacked, after a journey of possibly hundreds of miles, will in all probability be as fresh -looking as when they were placed in the box by careful hands. POTTING In anticipation of their arrival, soil and pots should be in readiness. The former should, if possible, con- Cultivation of the Dahlia 39 sist of two parts of good turfy loam, one of leaf mould, and one of rotted manure with a dash of sand thrown in. It will be all the better if it has been mixed some time beforehand. The pots should be from two and a half to three inches in diameter. Above the hole in the bottom of the pot put a little piece of crock or broken pot ; over this put a few pieces of fibrous soil ; then take the plant in one hand and place it carefully in the pot with its roots well spread out, while the other is engaged in filling in the soil, which should be made moderately firm. Be careful to insert the label and place in a bottom heat, say from 60° to 70°. Syringe the leaves and shade from the sun for a day or two, by which time the plant will have become inured to its new quarters and will be making new roots. If the plants have come to hand, by rail or other- wise, in pots, unbroken by the journey, they must be grown on in a temperature the same as that indicated above, until the pots have become filled with roots. In both cases, when this happens, it is time to shift them into four, five, or six inch pots according to the wish and convenience of the grower. The soil already described will be most suitable. New drainage will be required. It is advisable to place the plant just deep enough in the pot to allow the ball of earth taken from the small pot to be covered with new soil. The plants are most easily knocked out of the small pots by taking the stem of the plant between the fingers, inverting the pot, and giving the rim a gentle tap on the edge of the potting bench. If the soil be moderately moist, and the plant well rooted, the ball of earth will remain whole, and in this state can 4O The Dahlia be transferred to the larger pot without perceptible damage to the plant. Potting over, place the plants again in bottom heat, either in a pit or in a frame — the latter is better, as it encourages root action, while the plants can be more or less exposed to the air whenever the weather is suitable. Warmth at the root and comparative cool- ness above are the conditions which will best ensure their giving a good account of themselves in their future stages of development. Careful attention to watering, airing, and protecting from frost and insects will occupy the enthusiast up till the last week in May, or the first week in June. By that time the plants will have been hardened off by the gradual removal of the lights and the with- drawal of all bottom heat for at least a week, and will be ready to be put out into their more permanent quarters. PLANTING OUT It is not safe to plant out until all danger from frost is over. As the time when this is the case varies in different districts, each grower must be guided by circumstances ; but if he will accept advice, he will err on the safe side, as Dahlias do not grow much out of doors until well on in June. Dahlia growers, like doctors, differ in their opinions. Some advocate very wide planting as the best method of courting success — others succeed whose rule is very elose planting. Both systems may be quite correct, It is well to be governed by the space at the disposal of the grower, and to some extent by the probable size of the plants. Where space is not limited, and a plot Cultivation of the Dahlia 4 1 is exclusively devoted to Dahlias, a reasonable arrange- ment is to allow a distance of five feet from row to to row, and four feet from plant to plant. Those with limited accommodation, however, need not be alarmed at this. The writer has known a case where the plants were grown in a double line, two feet apart each way, and, moreover, the grower of them was very hard to beat. A course which has much to recommend it is the laying out of the ground in beds five or six feet wide, with paths one and a half feet or so in width. By this means two rows of plants can be grown in the bed, two feet or more apart each way, while each row can be reached from the path — an advantage in wet weather when the treading of the soil is so injurious. Whatever distances are adopted, have the stakes in their places when the planting day comes round. Thus the danger of injuring the roots in inserting them will be avoided, and the plants will have the benefit of their support at once. Then, given the right time of year, a suitable day, and the ground in good condition, the plants may be transferred to their new sphere. Where wide planting is practised, it is advisable rather to dig a good-sized hole and fill it with compost where each plant is to go than to manure the soil generally. Turn the plant out X fcD £ iff,! §1 & ^ £s | 1 28-1 29 Mrs. Gladstone . . 1884 Hurst . Pale blush 2 26-1 27 R. T. Rawlings . . 1886 Rawlings Clear yellow 3 23-4 24 John Walker . . i 1892 Walker . White 4 21-8 22 Duchess of York . j 1894 Keynes . Lemon, edged salmoi pink 5 21-3 16 Colonist . . . 1887 Keynes . Chocolate and fawn 6 20'9 20 J. T. West . .1887 Rawlingrs Yellow and purple 7 19-8 • 16 William Rawlings . 1881 Rawlings Crimson purple 8 17-6 19 Duke of Fife . . 1890 Keynes . Rich cardinal 9 17-1 11 Harry Keith . . 1886 Keynes . Rosy purple 10 17-0 18 William Powell . . 1892 West . Primrose yellow 11 16-9 13 Mrs. Langtry . . 1885 Keynes . Cream and crimson 12 16-7 19 Dr. Keynes 1896 Keynes . Rich buff 13 16-6 19 Maud Fellowes . . 1889 Fellowes Pale pink, shadec purple 14 16-4 12 Arthur Rawlings . 1 892 West . Deep crimson 15 16-2 14 James Cocker . . 1871 Key lies . Purple 16 14-8 12 Miss Cannell . .1881 Eckford . Creiim and crimson 17 14-5 13 Florence Tranter . '1896 Tranter . Blush white, edged 1 rosy purple Dahlia Analysis 101 SHOW DAHLIAS— CONTINUED S 93 c e ajjjj d 1 £ § lj« g fej £.2 £ 5 00 S> *! 03 & AJ OJ 8 1|| Name. £ * Colour. 5 5 cp a, ?! gst^ 1 ^! 1 gsfc-i °o£ 1—1 = £ •« IS M 18 14-2 18 Shotesham Hero 1895 Fellowes White, tipped and shaded rose 19 141 11 John Hickling . 1890 Keynes . Clear bright yellow 20 13-5 16 Chieftain . 1894 Keynes . Purplish lilac 21 13-4 12 Mrs. W. Slack . 1886 Keynes . Blush white and purple 22 13-3 17 Henry Walton . 1873 Keynes . Pale yellow and scarlet 23 131 14 Harrison Weir . 1 1883 Rawlings Yellow 24 11-1 9 Arthur Ocock 1892 Rawlings Reddish orange 24 11-1 13 Victor 1887 Keynes . Dark maroon 26 ll'O 17 Prince of Denmark 1881 Fellowes Dark maroon 27 10-8 15 Willie Garrett . ? . 1887 Garratt . Bright cardinal 28 10-6 1 Ethel Britton . 1880 . Keynes . White and purple 28 10-6 14 T. J. Saltmarsh . 1885 i Rawlings Yellow and chestnut 28 10'6 15 Goldfinder . 1881 Fellowes Yellow and red 31 10-5 8 Shirley Hibberd. 1881 i Rawlings Dark crimson 32 9-8 11 Warrior 1894 Keynes . Scarlet 33 9-5 11 Virginale . . 1893 Keynes . Blush white, edged pink 34 9-1 13 George Rawlings 1882 Rawlings Dark maroon 35 9-0 17 Mrs. D. Saunders 1888 Rawlings Pale, edged rose 36 8-1 13 Hon. Mrs. P. Wynd- 1881 Keynes . Pale yellow and rose j ham . 37 7'6 3 Perfection . 1889 Fellowes : Orange buff' 38 7-5 9 Daniel Cornish . 1897 West . Terra-cotta red 38 7-5 7 Mabel Stanton . 1896 Tranter . Deep yellow 38 7-5 5 Majestic . . . 1890 Keynes . White, edged purple 41 7'3 7 Mr. Glasscock . . ! 1886 Rawlings Purple 42 6-8 2 Alice Emily . . 1890 Keynes . Buff yellow 42 6-8 6 Glow-worm . . ; 1889 Turner . Bright orange scarlet 44 6-6 6 Diadem . . .1888 Fellowes Deep crimson 45 6-5 4 ; Crimson King . . , 1887 Keynes . Deep crimson scarlet 46 6-4 9 Imperial . . . ' 1883 Keynes . Purple and lilac 47 6-3 3 Earl of Ravensworth . 1883 Harkness Lilac 48 6-2 4 Mrs. Morgan 1893 Fellowes Pale ground, tinted rosy purple 49 57 5 Mrs. Every . » 1896 Keynes . White, edged lilac 50 5-7 6 Muriel Hobbs . ' . 1898 Hobbs . Yellow 51 5-4 3 Prince Bismarck 1879 Fellowes Puce 102 The Dahlia FANCY DAHLIAS c ! . ||l £ § *- rt fc.'d =o •^sS-2 c 0 ** ' to If 111 ill! Name. J Q I 11 Colour. 1 is Ogt »= 1 (2 3 a S^-1 1 20-6 27 Rev. J. B. M. Camm . 1873 ; Keynes . Yellow and red 2 17-4 14 Duchess of Albany . 1884 Turner . Orange and crimson 3 16-5 25 Mrs. Sauuders . . 1 872 < Turner . Yellow and white 4 15-0 10 Mrs. John Downie . 1889 Turner . Orange and scarlet 5 14-0 14 Goldsmith . . . 1895 Keynes . Yellow, striped crimson 6 12-6 15 Matthew Campbell . 1889 Keyues . Buff and crimson 7 11-5 7 Dorothy . . .18 88 Keynes . Fawn and maroon 0 O 11-0 5 T. W. Girdlestone . : 1890 Keynes . Lilac and maroon 9 10-6 15 ! Emin Pasha . . 1894 Keynes . Yellow, striped crimson 9 10-6 7 i Frank Pearoe . . 1886 Rawlings Rose, striped crimson 11 10-5 16 Buffalo Bill . .1890 Keynes . Buff, striped vermilion 12 9-4 10 Peacock . . .1877 Turner . Maroon and white 13 87 14 S. Mortimer . . 1894 Mortimer Rose, striped crimson 14 8-5 7 Watchman . .18 99 Keynes . Golden yellow, striped crimson 15 8-0 6 Rebecca . . .18 83 Keynes . Lilac and crimson 16 7-0 12 Dandy . . .18 91 Keynes . Orange, striped crimson 17 6-3 3 Comedian . . .18 92 Kevnes . Orange and crimson 18 5-5 6 Hercules . . .1877 Keynes . Yellow and crimson POMPONS. — According to their averages for the last four exhibitions, the best varieties arrange themselves as follows : — Bacchus, Nerissa, Tommy Keith, Emily Hopper, Douglas, Phcebe, Whisper, Ganymede, Sunny Daybreak, Captain Boy ton, G. Brinckman, Dr. Jim, Demon, * Lilian, Madeline,* Arthur West, Snowflake,* Hypatia, Eurydice, Donovan, Vara,* The Duke,* Clarissa, Ernest Harper, Adrienne, and Rosebud. The varieties marked with an asterisk were sent out in 1899, or subsequently. CACTUS. — In the following list the leading varieties will be found arranged according to the number of times they were staged at the last exhibition of the National Dahlia Analysis 103 Dahlia Society, and also, for comparison, their records, where available, for the two previous shows. 1901 1900 1899 1 Britannia, 1898 . 2 Uncle Tom, 1900 . . ' . 3 Mrs, J. J. Crowe, 1900 4 C. Woodbriclge, 1897 . 5 Countess of Lonsdale, 1899 . 6 J. W. Wilkinson, 1901 7 Lord Roberts, 1901 7 Mrs. Carter Page, 1900 9 Lucius, 1899 9 Mary Service, 1898 11 Viscountess Sherbrooke, 1899 12 Zephyr, 1900 . . . 13 J. F. Hudson, 1899 13 Magnificent, 1899 15 Galliard, 1901 . . . 15 Mayor Tuppeney, 1900 17 Stella, 1898 . 18 Emperor, 1900 . 18 Lyric, 1901 .... 20 Vesta, 1901 .... 20 William Jowitt, 1900 . 22 J. Weir Fife, 1901 22 Night, 1898 . . . • . 22 Rosine, 1901 25 Ajax, 1900 . . . , 25 Elsie, 1900 . . V 25 Imperator, 1901 . 25 The Clown, 1899 . 25 William Treseder, 1900 30 Cornucopia, 1900 . 30 Laverstock Beauty, 1898 30 Starfish, 1897 48 55 26 salmon pink and apricot 36 23 maroon 30 23 clear canary yellow 29 47 25 crimson 28 38 17 salmon and apricot 25 rosy crimson 24 ivory white 24 26 deep crimson 23 20 13 deep orange 23 42 23 russet and heliotrope 19 26 9 reddish terra- cotta 18 18 bright rose pink 17 20 reddish carmine 17 23 17 salmon pink and apricot 15 crimson scarlet 15 26 yellow, orange, and fawn 14 12 9 bright crimson 13 15 velvety plum 13 deep bronzy red 12 pink 12 8 scarlet 11 deep crimson 11 41 18 maroon 11 rose 10 "7 orange and buff 10 8 rose 10 ruby crimson 10 18 brick red, edged white 10 9 blush white 9 10 deep reddish salmon 9 24 8 soft red 9 41 25 orange scarlet SINGLES. — The following varieties have been arranged according to the average number of times they were shown at the last three exhibitions : Polly Eccles, Victoria, Miss Roberts, Aurora, Leslie Scale,* Naomi Tighe, Miss Glasscock, The Bride, Northern Star, Girlie,* Peacock,* Tommy,* Duchess of Marlborough, Beauty's Eye, Formosa, Donna Casilda, Jack Sheppard, Demon, Phyllis, Puck,* Jeanette. The varieties marked with an asterisk are new varieties — those sent out in 1899 or subsequently. SELECTIONS FOR SPECIAL PURPOSES SELECTIONS OF VARIETIES FOR GARDEN DECORATION. —The following varieties have been chosen for this purpose on account of their robust and free-flowering habits, and because they produce their flowers on long footstalks, and thus carry them well above the foliage : — TWELVE SHOW DAHLIAS FOR GARDEN DECORATION CANARY BIRD, bright canary yellow, grand outline and high centre, 3 feet. GLOW-WORM, bright orange scarlet, high centre, very fine, 3 feet. GOLDFINDER, yellow, tipped with red, large and well-built, 2i feet. GRACCHUS, bright orange buff, good outline and petal, and very constant, 3 feet. HARBINGER, most beautiful shade of peach, good form, petals and centre, 3 feet. JOHN WALKER, finest white Dahlia ever raised, 3 feet. MRS. GLADSTONE, delicate soft blush, 3 feet. MRS. LANGTRY, cream, edged with crimson, 4 feet. MRS. W. SLACK, blush white, edged with purple, 3 feet. OCTAVIA, yellow, shaded orange, tinted with rosy purple, 3 feet. PERFECTION, orange buff, 4 feet. WARRIOR, intense scarlet, 3 feet. TWELVE CACTUS DAHLIAS FOR GARDEN - DECORATION ARTUS, orange buff, graceful form, 4-1- feet. AUNT CHLOE, very dark, the younger florets being quite black, 3 feet. 104 Varieties for Garden Decoration 105 GABRIEL, ground colour bright velvety crimson, upper half of each floret snow white, 4^ feet. GENERAL FRENCH, deep bronze, large flower, free flowering. J. H. JACKSON, intense blackish maroon, 3 feet. J. W. WILKINSON, deep rosy red, 3j feet. LORD EGBERTS, white, with creamy centre. MRS. J. J. CROWE, flowers very large and of a lovely clear canary yellow, without shading, 5 feet. MRS. JOWETT, apricot, slightly shaded with coppery red on the points of the petals. MRS. MAWLEY, clear yellow, very large, full, and finely-outlined flower. MRS. WINSTANLEY, colour yellow disc, gradually shading to soft scarlet, 5 feet. RICHARD DEAN, red, heavily tipped with white, 4 feet. TWELVE POMPON DAHLIAS FOR GARDEN DECORATION AMBER QUEEN, rich clear amber, shaded golden apricot, 3 feet. ARTHUR WEST, crimson, 2 feet. BACCHUS, scarlet, 2j feet. DAGMAR, maroon, shaded crimson, very distinct, 3 feet. FLORA, rich, golden yellow, neat small flowers, 2^ feet. NERISSA, soft rose, tinted with silver, not too large, 4 feet. RED INDIAN, coral red, 3 feet. ROSEBUD, white ground, edged rosy pink, 3j feet. ROSEA, deep rosy cerise, 2j feet. SYBIL, yellow, shaded and tipped with scarlet, 4 feet. TOMMY KEITH, red, tipped white, 3 feet. WHITE ASTER, pure white, a grand cutting variety, 3 feet. TWELVE SINGLE DAHLIAS FOR GARDEN DECORATION ANNIE MITCHELL, creamy white, bright yellow at the base of petals, 2j feet AURORA, yellow suffused with orange, 3^ feet. DUKE OF YORK, fine light scarlet of exquisite form, 3| feet. io6 The Dahlia GOLDEN LOCKS, lovely yellow, 3^ feet. GRACE BALLANTYNE, yellow, shaded aiid streaked with deep chrome, 3j feet. JANET BRAES, magenta, flushed with crimson, orange at the base of petals, 3 feet. Miss HENSHAW, primrose, edged white, 3 feet. Miss RAMSBOTTOM, lovely pink, 3 feet. MRS. HENSHAW, dazzling crimson scarlet, 3 feet. PHYLLIS, pale ground, striped with lilac round the centre and flaked with crimson, 2 feet. W. FIFE, clear yellow, striped with bright scarlet, 3 feet. WHITE QUEEN, white, large and good, 3 feet. TWELVE SINGLE CACTUS DAHLIAS FOR GARDEN DECORATION ALICE LEE, pink, shading to white at the base, 3 feet. ALTHEA, deep glowing crimson, 3 feet. BRENDA, chrome yellow, 2 feet. BRENHILDA, white at base of petals, soft rose at points. CRUSADER, orange ground, streaked with bronzy red, edges tipped crimson, 3 feet. FENELLA, crimson at the base of petals, passing to deep orange, 3 feet. HELEN MACGREGOR, lower half of petals yellow, upper a deep mahogany, 3 feet. IVANHOE, bright rose colour, with crimson band round centre, 2j feet. LADY CLARE, scarlet, shading to magenta at the tips, 3 feet. LADY EDITH, lower part of the petals yellow, passing to deep pink, pale pink at the edge, 2 feet. QUEEN MARY, purest white, with pale yellow disc, deep golden centre, 3 feet. ROSE BRADWARDINE, clear yellow ground, bronze, tipped with red, 3 feet. THE DAHLIA IN AMERICA By LEONARD BARRON, Editor, American Gardening THE beginning of the twentieth century has seen a wonderful revival in the cultivation of the Dahlia in the United States, and at the present time there is a more deeply -rooted and more critical interest than ever before. And it is not only the professional gardener who is thus concerned, for among the pioneers of the revival are some of the most prominent leaders in society. Whether the inspiration has come from Europe it would be hard to say, but certain it is, however, that it is to Europe that we of the States look for the really good new things. There is a good market here for a limited quantity of a sterling novelty, but it must really be good, and, besides having the attribute of novelty, must be decidely superior to what is already in existence. The purely academic interest in a new thing merely because it is new, such as is so characteristic of the English amateur, is not met with in the person of his American cousin. Intrinsic merit counts for very much more. And again, as it is with other flowers, the American pays very particular regard to the useful qualities of the variety. That is to say, such things as the length of stem and the 107 io8 The Dahlia enduring qualities of the bloom when cut are all powerful factors in the determination of the merit of a claimant for notice. All these little points are worthy of remembering ; for a clear understanding of the conditions will enable the English student to better appreciate the sometimes very frigid reception that has been accorded to some of the most heralded beauties from " across the water." Then, again, it must be remembered that climatic differences influence the behaviour of a variety, and the popular Green's White of the English fancier is not a success in the gardens about New York solely for this reason. The flower as seen here is undeveloped, and of a poor nondescript colour. This is given merely as an example ; it is not an isolated case, nor, on the other hand, is it to be understood as a rule. Each variety must be tested for itself. Up to about fifty years ago there was a great interest in the growing of Dahlias in the neighbour- hood of Philadelphia, Pa. Indeed there was an intense rivalry among a few prominent gentlemen of the city as to who should have the best and the latest varieties of the flower of their fancy. We gather/from the records of that period that then, as now, the novelties came from Europe, chiefly from England indeed. And big prices were paid for the privilege of securing the most sensational of the new things. Indeed it is said that two gentlemen were in the habit of making the voyage each year, collecting the new things, and fighting out the battle for supre- macy on the exhibition boards the next season. Then carne a lull. The Dahlia, although grown on a fairly large scale, was not a flower of critical The Dahlia in America 109 appreciation, and indeed was saved from oblivion only because of the interest that attached itself to a plant that had the associations of childhood's days to keep it fresh in the mind. For several years this period of desuetude endured, and it was in March of 1895 that the revival movement became active in the forma- tion of the American Dahlia Society in Philadelphia. Interest was aroused, and the Dahlia once more came into a prominent place among Flora's gems. From this date can be counted the era of the modern Dahlia cult in Eastern America. The organisation itself, however, soon became moribund, and after enduring a struggling existence was formally dissolved at a meeting in New York in 1901. Strange to say, simultaneously with the dissolution of the society a very intense interest in the Dahlia spread more widely than ever, and a New York gentleman, Mr. J. W. Withers, who had been growing a small collection for a few years, struck upon a cultural detail that materially increased the chances of the future of the Dahlia as a garden plant in this climate. The one reason why the Dahlia had not held its own in this country was perhaps the uncertainty of flowering properly, and which peculiarity appeared to baffle all the modern cultivators except those who had some particular location which just suited the plant. It was so with Mr. L. K. Peacock, at Atco, N.J., and from the ease with which he produced really first-class blooms in abundance, it seemed that other growers who tried the plant and found it wanting were negligent of its wants. But just what those wants were was an evasive problem. His soil was a pure white sand, poor and dry. In New England i io The Dahlia one or two nurserymen had maintained the successful cultivation of the plant. But elsewhere it was the rule that in the full season of the Dahlia, — that is to say, in the early fall, — the plants, which had up to that time been full of promise, became suddenly sickly. They stopped making free growth, producing only stunted, twisted shoots ; the leaves fell victim to a mildew which seriously disfigured the plants ; and, moreover, the flower buds which were present refused to expand, and, becoming black, finally shrivelled up and fell. It is abundantly demonstrated now, however, that the secret of successful Dahlia culture lies in not allowing the plant to make too much growth before the proper season. With the hot dry spell of weather which usually strikes about the months of July and August, plants which have been in full growth for some time before, and are already in the flowering stage, suffer so severely that they succumb to the conditions, and are not able to recoup their strength in the early fall sufficiently soon to. enable them to again flower before the frost arrives and the tops are cut down. The end in view is attained by late planting. In a word, the successful cultivation of the Dahlia in this country— I am speaking of course for the Eastern States — rests absolutely upon keeping the roots out of the ground just as long as it is possible to do so. The temptation to plant early, — that is, as soon as danger of frost is gone in the spring, — is a strong one, but the wise ones will hold off until even July is fairly in. The case is well presented by Mr. Withers himself in a com- munication to American Gardening of llth May 1901. The reason that amateurs have had little success, while those of the trade obtained gratifying The Dahlia in America 1 1 1 results, is no doubt due to the fact that in the case of the latter late planting is a necessity owing to the rush of other things in the early spring season. Koots thus planted do not start, do not begin their growth until after the first hot spell is over, and as a matter of fact they do not stop growing when once fairly started on the road. Moreover, plants thus grown do not require stakes, for they keep within a reasonable height, and again can be planted more closely together. Planted out about the 1st of July (that is, roots, not cuttings), bloom will begin about the middle of August and continue until frost. The old time growers apparently followed this plan or something like it, for in the first volume of Hoveys Magazine, dated 1835, a writer calls attention to the desirability of retarding the growth of the plants " even two or three weeks, as when planted early they are apt to form their flower buds at a period when the weather is both so hot and dry as to cause these buds to perish as fast as they are formed." And yet this cardinal point was lost sight of until lately, and even to-day is regarded with suspicion or doubt by some ; at the same time it is a fact that there has not been a successful exhibitor of Dahlias in recent years who persistently and consistently adhered to early planting. It is found to be good practice to plant the roots in preference to cutting plants, dividing them so as to leave one eye only. Field roots as lifted the previous year may be used just as well, and will of course give larger plants — that is to say, more stems ; but if divided up, the results on the whole will be far better. One reason that cutting plants are not so good as roots is i 1 1 2 The Dahlia that they are more difficult to ship, being in danger of drying out on the one hand, or sweating during transit on the other. Eoots cut to a single eye may be planted in a trench or hole so as to be 6 inches below the level, and the soil gradually filled in as the stem develops. With regard to the lifting and storing for winter, the self-same conditions that govern the Dahlia in Europe prevail in America too. Eoots are lifted sometime in November, and stored where they are free from frost and will not rot. The cellar of a dwelling-house where there is a furnace is an ideal place. The roots may be covered with ashes, after having been allowed to dry off a little, and so stored. In. the spring they will start into growth, and may be carried into the open air in some half-shaded spot and simply not planted until the middle of June at the earliest. It is best to plant in full exposure, as the stems then develop more sturdily and are able to resist winds. As to the question of feeding, much — very much indeed depends upon the nature of the soil itself. In a light sandy soil a mixture of four parts bone-meal and one part nitrate of soda as a top-dressing after the plant is well up is recommended. On ordinarily good soils a mixture of bone black and acid phosphate has given full satisfaction so far as both quality and quantity of bloom were concerned, but there appeared to be a tendency in this treatment to make small tubers, and in some cases indeed no tubers at all were lifted at the close of the season. In the matter of watering debatable ground is again entered. The best blooms that I have seen have come The Dahlia in America \ 13 from plants that never were artificially watered ; but the plants were on a moderately heavy soil. In the case of the sandy soils already referred to, water can naturally be applied in unlimited quantity without really giving much to the plant, for from the very nature of the soil it will dry out almost as soon as watering is stopped. It has been recommended already to let the plant grow naturally. In some quarters it is the practice to plant early and then pinch out the tip of the young shoot to induce it to branch, and incidentally, it may be remarked, it ensures a later growth. The largest growers, whether commercial or amateur, do not ever find it necessary to use stakes, unless the roots are started too early. To the genuine Dahlia enthusiast of the old school, the perfect modelling of the true show or fancy type of bloom ever appeals as the highest form of the Dahlia, as indeed it is. But of late the tendency in floral taste has leaned toward the more unconventional and aesthetic types of the Cactus and the decorative blooms. Indeed, Americans look with most kindly eye upon the latter group ; and it is to a few good introductions in this group — American raised varieties — especially Wm. Aguew and Clifford W. Bruton, that modern interest in the flower as a commercial possi- bility for cut flowers had its origin. In the Dahlia, as in other flowers, the American taste runs to loose unconventionally, so that the decorative, or, as it is sometimes called, the cactus-hybrid type, is increasingly popular with the masses. In the matter of classification there is much to be accomplished yet, the tendency being to include the H4 The Dahlia two groups as one under the title of cactus ; and there is a shrewd suspicion that certain dealers wilfully muddle the two groups, and include any nondescript seedling in the all-embracing and convenient class. Still, there is a keen appreciation of the decorative type, and it will grow. As a plant for cut flower the Dahlia is assuming an important place. It gives really rich colour and variety. What has been done for the Dahlia in America is but the beginning ; the leaven is at work, and from Newport in Ehode Island to Washington, D.C., Dahlia gardens are being planned as never before. And from California comes evidence of the interest, a correspondent giving this account of the methods adopted there : — In the city of San Francisco the climate is very cool, especi- ally in midsummer, and in being on the coast we get a deal of foggy nights, which, of course, just suits the Dahlia, and there are at this date some really first-class blooms to be seen in San Francisco, especially in first-class Cactus vars. recently imported from Europe. Personally, I do not grow them for early flower- ing, as I prefer my Dahlias to bloom when most of our best garden flowers have passed their best ; but some of our gardeners here have them blooming with roses, carnations, etc. The method which I have adopted is to pot small tubers cut to one eye, and then plant out in the open ground when I think they are strong enough to fight for themselves, as when planted in mixed borders slugs and snails are liable to be very trouble- some, if planted in the usual way. I allow but one stem, pinch back, to make about four laterals. In growing for exhibition I generally pinch out the growths of a couple of joints nearest to the buds, and get a nicely finished flower in that way. Now, the culture is quite different in the interior of California, where the climate is much warmer than in San Francisco. Dahlias are generally planted out in April or May, and kept growing steadily. They usually produce a few, small, semi-double flowers during the hot weather ; but in September, when cooler weather prevails, they are cut down, well mulched and given a The Dahlia in America 1 1 5 good soaking, when they make a rapid growth and come in bloom about the same time as Chrysanthemums, and give a very good display of flowers. Should the weather be dry, of course the Chrysanthemum comes first in favour, but in damp weather the Dahlia makes a good second. WILLIAM ELDRED. SAN FRANCISCO, CAL. In writing of the Dahlia in America it must be borne in mind by the reader that the territory thus covered is immense. The particulars given in the foregoing relate chiefly to New York as a centre, and it would be necessary to make allowances for the climatic variations as one went any considerable dis- tance north or south ; and the west, again, is so entirely different as to present entirely other problems. As an indication of the standards of merit, the following variety lists are taken from authoritative sources. Mr. T. A. Havemeyer, the leading amateur grower of the time, annually imports the season's leaders from abroad, and his report for 1901 is as follows : — At your request I send a list of Cactus Dahlias that have proved the most successful with me this season, taking as a standard perfection of flower, freedom of bloom, length of stem, and habit of growth. We tested the greatly advertised GREEN'S WHITE, but unless it. does better it will be worthless in this country, as we were unable to procure a perfect flower from ten good, healthy plants. A new decorative Dahlia of great beauty is MADAM VAN DEN DAEL, very large flowers, of a pleasing silvery pink, splendid form, with long stems. I consider this the best all-round decorative Dahlia I have seen to date. The best new Show Dahlia we thought was DAVID JOHNSON ; it is the same quilled type as A. D. Livoni. The colour is a delicate peach pink or salmon, beautifully quilled, and a perfect sphere in shape. It is very free and dwarf. WIELAND, a new Cactus Dahlia of German origin; pretty pink, free and dwarf. 1 1 6 The Dahlia NIGHT, very dark, maroon, an improvement on Matchless, as the petals are always well pointed. VISCOUNTESS SHERBROOKE, bright reddish terra-cotta suffused with apricot, the freest of all our Cactus Dahlias this year ; flowers large and always perfect. PROGENITOR, bright clear carmine, every petal furcated at the end like a stag's horn, and forming several points ; very free and dwarf. MRS. J. J. CROWE, the best yellow, stems long and stiff,, petals very long and narrow, plant dwarf and free. MRS. CARTER PAGE, rich velvety crimson, petals very long and narrow. KINGFISHER, rosy purple, very good. BRITANNIA, soft salmon pink, flowers perfect, very free and dwarf, stem very long. STANDARD BEARER, bright fiery scarlet, very free and flowers nearly always full. W. B. CHILDS, blackish maroon, with purple shading, large flower, very free and dwarf. SIR A. MILNER, bright orange red, large flower of very good form. ZEPHYR, rosy pink, flower always perfect, but stem not stiff enough. EMPRESS OF AUSTRIA, deep velvety crimson, long, stiff stem, free and dwarf, one of the best. RUBY, splendid for bedding ; plant mass of flowers ; blooms,, although small, very good shape ; colour, ruby red. MARIE LOUISE is also a very free bloomer and very useful. T. A. HAVEMEYER. Mr. J. W. Withers' selections of ten in sections are : — SHOW DAHLIAS COLONIST. WILLIAM RAWLINGS. COUNTESS OF RAVENSWORTH. DANIEL CORNISH. FLORENCE TRANTEE. EMILY. ARABELLA. HARRISON WEIR. HENRIETTA. DR. KEYNES. The Dahlia in America 117 FANCY DAHLIAS MRS. DAVID SAUNDERS. MME. SOUBYRE. S. MORTIMER. PEACOCK. GENERAL GRANT. DUCHESS OF ALBANY. LUCY FAWCETT. HENRY ECKFORD. STRIPED BANNER. STARTLER. CACTUS DAHLIAS AEGIR. ALFRED VASEY. CAPSTAN. CYCLE. EARL OF PEMBROKE. EDWARD MAWLEY. ERNEST GLASSE. GEORGE MAHLOW. HARRY STREDWICK. JOHN H. EOACH. The literature of the Dahlia in America is meagre. A treatise was published in Boston in 1839 by E. Sayers, and in 1896 Peacock's The Dahlia appeared ; and other matter since then is found in the weekly papers. THE FUTUBE OF THE DAHLIA IN the Florist for 1855 a writer asked the question — Is there a reasonable prospect of the Dahlia's pro- gression ? What would that writer say if he had now to answer his own question ? He wrote at a time when raisers had, by their exclusiveness, almost eliminated Dahlias from public favour and general cultivation. Then raisers aimed at raising and retaining none but flowers of the Show and Fancy type. Everything that failed to come up to their standard of geometrical precision was discarded as worthless. True this was brought about, in its earliest stages at least, through a laudable attempt to extricate the Dahlia from a perfect confusion of forms that prevailed. The revival of Dahlia culture dates from about 1870, when the National Dahlia Society was instituted ; but what has done more than even the National Dahlia Society to popularise the cultivation of Dahlias has been the introduction of the Single, Pompon, and Cactus sections. These have been taken up, and enthusiastically grown by thousands who never fancied the Show and Fancy varieties. It was in 1880 that the Single Dahlia was introduced, or rather re-intro- duced into commerce, and in that year also the Cactus — 118 The Future of the Dahlia \ 1 9 Jaurezi — made its appearance in this country. From that moment the future of the Dahlia was assured. The graceful Singles took the public taste immediately, for here was found a plant that produced beautiful flowers in profusion with a modicum of trouble. Juarezi, the precursor of all our Cactus varieties, was looked at a little askance at first ; but, as seedlings from it began to appear, showing improved form and fresh colours, they were taken up by an interested public, and, at the present moment, the interest in Cactus Dahlias is very great, and is so rapidly on the increase that it is quite safe to predict a great future for them. Much remains to be done in the way of improving their habit. Long stiff footstalks are wanted to all the flowers. Every one must be discarded which does not hold its head erect on a stiff, wiry stem, at least 12 inches long. May I suggest that larger flowers than we at present have are not wanted, — smaller ones would be an advantage sometimes. Then they will be more useful for cutting, and the plants will form much more effective objects through the flowers being raised well above the foliage. These improvements will only be the work of a very few years, and what are the raisers of Cactus Dahlias then to aim at ? New colours and new combinations of colours will ever afford an illimitable field. The round-flowered Single Dahlia and the Single Cactus forms will continue to be grown wherever truly graceful flowers for cutting are wanted, but their cultivation will not be nearly so general as the other types. The Pompon varieties, which are great favourites for garden decoration and cut flowers, will continue to be popular for two reasons : their perfection of form and daintiness of 1 20 The Dahlia size will always commend them, and likewise will their fine dwarf compact habit. Although the Cactus varieties will absorb the attention of the great majority of growers for the next decade at least, yet, so long as we have a sturdy artisan population — and may we always have it — who delight in producing on their small plots large sym- metrical specimens of either flowers or vegetables, so long, I believe, will there be a steady demand for Show and Fancy Dahlias. They are, without doubt, the most perfect of Flora's creations from a true florist's point of view. Efforts will, I believe, be made to raise a hardier race of Dahlias, and something will be done to produce varieties with a tendency to flower earlier. The future of the Dahlia is assured. It may develop along new lines, but that it will be less cultivated is most improbable, unless it becomes the prey of some dire disease such as has attacked the Hollyhock. THE END Printed by R. & R. CLARK, LIMITED, Edinburgh Jlafamal Daijlta Hon. Secretary — P. W. 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