Vol. 5, No. 2 Center for Urban Horticulture / Washington Park Arboretum / University of Washington CENTER NEWS Spring is the time of the year when a gar- dener’s fancy turns to: flowers, ferns, bonsai, new plants, and let’s get our fingernails ‘dirty’! This year, more events than ever will be held at the Center for Urban Horticulture and the Graham Visitors Center, Washington Park Arboretum. Join us for as many classes, tours, and lectures as possible, and be sure to I attend an expanded array of Plant Shows and Plant Sales for new ideas. And start saving your pennies, nickels, and quarters for all those plants you’ll surely want to buy. Happy gardening! — John A. Wott Professor, Continuing Education Northwest Horticultural Society The following events have been scheduled. April 12, 10:30 a m., Marco Polo Stufano Lecture at CUH Director of Horticulture, Wave Hill, Bronx, New York April 26, Tour of Bloedel Reserve, Bainbridge Island April 27, 7:30 p.m., Geoffrey Rausch Lecture at CUH Landscape Architect, Pittsburgh, PA May 17, Tour of Vancouver, B.C.’s new Chi- nese Garden. Lecture by Duane Pentilla, Senior Landscape Architect, Seattle Parks and Recreation Department ne2, 7:30 p.m., Dr. John Mickel Lecture at CUH Fern Curator, New York Botanical Garden Contact: Maidie Anderson 455-4477 Parking , Cars , Parking Being too successful always brings problems, and in this case, it means a change in parking regulations for everyone who uses our facili- ty. In order to be responsive to the quiet neighborhood on which we border, the Uni- versity Parking Division will now encourage the prepurchase of event parking. Each orga- nization will be asked to prepay the necessary charges as part of their fee. Also, all lectures, classes, etc., will include a parking charge. Individuals will still be able to use the ticket spitters when the parking lots are not prepaid. We would urge everyone to park in our lots rather than on the residential streets. We hope our horticultural friends help us keep up the ‘good neighbor’ policy! Special Events at CUH The Early Rhododendron Show and Sale will be held on April 2, noon to 6 p.m. and April 3, 9 a.m. to 6 p.m. See the earliest rhodo- dendrons in flower. The Washington State Chapter, American Primrose Society stages its annual show and sale on April 9, 11 a m. to 4 p.m. and April 10, noon to 4 p. m. This year you’ll have two days for carefully choosing exotics. For the first time, the King County Master Gardeners Foundation will hold its Plant Sale here on April 23, 10 a.m. to 5 p.m. and April 24, 10 a.m. to 2 p.m. It will feature lots of bedding plants. The Puget Sound Bonsai Association will hold its annual display of all types of bonsai on Mother’s Day weekend, May 7, 10 a.m. to 5 p.m. and May 8, 10 a.m. to 4 p.m. The Annual Fern Festival will be held on June 3, 1 to 5 p.m. and June 4, 10 a.m to 2 p.m. A featured lecture will be given by Dr. John Mickel, curator of ferns, New York Botanical Garden, on June 2, 7:30 p.m. Business is Booming! Volunteers Needed! More people are visiting the Washington Park Arboretum every month. The Graham Vis- itors Center is now open every weekend from noon to 4 p. m. We need your help greeting all these visitors! A variety of volunteer positions need filling. Call 543-8800 to find out which position is just right for you! Miller Library News The Miller Library will be open several Satur- days this spring so that you can investigate seed catalogs, plant characteristics, and garden designs during the prime gardening season. Thanks to gift funding from Betty Miller, our open Saturdays will be April 16, May 7, and May 21 from 10 a.m. to 2 p.m. Several gift books were received as we went to press: A Garden for Children in memory of Colonel James Curry (husband of Jeannine Curry) and Flowers for All Seasons in memo- ry of Mr. Bud J. Burnett (husband of Adele Burnett). In addition, Arboretum Unit #44 presented the Library with a copy of Gardens of the Heart after a recent library tour. Puget Sound Mycological Society The P.S.M.S. will hold a course on beginning mushroom identification on Tuesdays, April 19, 26, May 3, 17, 24, 31, 7 to 9 p.m. Learn the basic grouping of mushrooms and their use in identification. The fee is $30 payable to P.S.M.S. Free identification clinics will be open Mon- days in April and May from 3 to 7 p.m. All events will be held at Isaacson Hall, Center for Urban Horticulture. Call 522-6031. PUBLIC LECTURE SERIES * One-hour lectures covering a wide range of horticultural interests. *$1.00 parking and service fee will be charged for lectures held at the Center for Urban Horticulture; please do not park on the street. The Plant Enthusiast Second Wednesday of each month, 10 a.m., at the Center for Urban Horticulture. Seattle’s Street Trees — Can They Survive April 13 (ARBOR DAY) by Roger Kjelgren, graduate student, Center for Urban Horticulture Urban trees are subject to pollution, drought, vandalism, and lousy soil. How do they sur- vive? Mr. Kjelgren will share fascinating ob- servations and practical advice from his study of Seattle’s street trees. Curious Plants of the Tropics May 11 by Scot Medbury, graduate student, Center for Urban Horticulture Do you know the largest seed in the plant kingdom? Have you ever eaten a split-leaf philodendron? Mr. Medbury, who formerly worked in the tropics, has a plethora of curi- ous facts on tropical plants. Vines for Your Landscape June 8 by Pat Roome, landscape designer and WSU Master Gardener There’s nothing like a vine to soften the harsh aspects of your garden — ugly walls, fences. Learn how to select the right vine for your situation, how vines attach themselves, and how to properly train a vine. Plants and Gardens of the World Third Monday of each month, 7 p.m., at the Center for Urban Horticulture. The Arctic National Wildlife Refuge April 18 by Meg Anderson and Kristen Shepherd, Alaska Coalition The coastal plain of the ANWR is the only such eocsystem still intact. This severe but spectacular landscape is home to diverse plant and wildlife populations — caribou, wolves, musk oxen, grizzlies. 108 species of birds return here each summer. When the Country Came to Live in the City May 16 by Dr. Linda W. Rutland In the first century B.C., Lucullus established the first of Rome’s great private parks, which combined elements of architecture, land- scaping, and even animal preserves. Discover how they influenced the life of Rome’s populace. The Royal Botanic Garden at Kew June 20 by Sheila Walters, WSU Master Gardener Experience one of Britain’s great gardens in its early summer splendor, and tour the new Princess of Wales Conservatory. This is a must for anyone traveling to the U.K. this summer. The Master Gardener Second Friday of each month, 7:30 p.m., at the Center for Urban Horticulture. Practical gardening information presented by the Washington State University Master Gardeners. Horticultural Fallacies Perennials for Shady Spots New Home Landscape Design April 8 by Van Bobbitt Do you fertilize your lawn in the early spring? Put gravel in the bottom of flower pots to improve drainage? These and other common gardening practices may be harmful to your plants. May 13 by Mary Robson What can you grow around rhododendrons and other shade-loving shrubs? Learn to bring intriguing foliage texture and flowering beauty to the dimmer corners of your yard. A book list is included. June 10 by David “D.C.” Clausen Can you really transform that muddy lot into a lush garden? Find out how to properly plan your landscape and avoid costly mistakes. Plot plans, plant selection, and walkways will be discussed. Brown-Bag Garden Talks First and third Wednesdays of each month, 12:10 to 12:50 p.m. Usually held at the HUB; call for details. Enjoy these FREE informal lectures, walks, and demonstrations during your lunch hour. Jointly sponsored by the Center for Urban Horticulture and the Washington State Uni- versity Master Gardeners. Tips for a Greener Lawn April 6 by Hal Harrison, WSU Master Gardener Tomatoes on the Porch: Container Vegetable Gardening April 20 by Mary Robson, WSU Master Gardener Annuals for Summer Color — Plant Now! May 4 by Lynn Meyer, WSU Master Gardener Pruning Rhododendrons May 18 by David Zuckerman, Washington Park Arboretum Tour of the Medicinal Herb Garden June 1 by Scot Medbury, Friends of the Medicinal Herb Garden Campus Tree Walk June 15 by Van Bobbitt, Center for Urban Horticulture CALENDAR OF EVENTS APRIL ^ Sunday Monday Tuesday Wednesday Thursday Friday Saturday 8 a m. CUH* 31 Skagit Valley Tour 1 Noon-6 p.m. CUH* 2 Early Rhododendron Show & Sale 10 a m -2 p.m. Miller Library Open 9o m.-6p.fn. CUH* 3 Early Rhododendron Show & Sale ] p m WFA Sunday at One Tour 7 p.m. CUH 4 NW Orchid Society 7:30 p.m. CUH King County Iris Society 5 12:10 p.m. HUB 6 Lawn Tips 7 p m. CUH* Natives 7:30 p m CUH Seattle Rhododendron Society 7 p.m. CUH* 7 Perennials 7:30 p.m CUH 8 Horticultural Fallacies WPA Arbor Weekend Q 9 am. CUH* Bonsai 11 a m. -4 p.m. CUH Primrose Show & Sale WPA Arbor 1 f) Weekend Noon-4 p.m. CUH Primrose Show & Sale 1 p.m WFA Sunday at One Tour 7:30 p m. CUH H Seattle Rose Society 10:30 a m. CUH* 12 N.H.S. LECTURE Marco Polo Stufano 7 p m. CUH Puget Sound Mycological Society 7 p.m CUH* Lawn Care 7:30 p.m. WFA Japanese Garden Society 10 am. CUH 13 Seattle's Street Trees 7o.m. CUH 14 Rhododendron Hybridizers 7:40 p.m. CUH Rock Garden Society 15 9 am CUH* 16 Bonsai 10 a m. -2 p.m Miller Library Open 1 p.m WFA 17 Sunday at One Tour 7 p.m. CUH Arctic Wildlife Refuge 19 1210 pm HUB 20 Container Vegetables _ 9 am. CUH* 21 Mercer Island Garden Tour 7:30p.m. CUH Chrysanthemum Society 22 9 am. CUH* 23 Bonsai 9 am. WPA* Pruning 10 a m. -5 p.m. CUH Master Gardener Foundation Plant Sale 10 a m. -2 p.m. CUH 24 Master Gardener Foundation Plant Sale 1 p m WFA Sunday at One Tour 6 p.m. CUH 25 Puget Sound Bonsai Association CUH Hort Field Day26 7 p.m CUH* Ferns 10 a m. WPA 27 Explorers’ Walk 7:30 p m CUH N.H.S. LECTURE Geoffrey Rausch 7 p.m. CUH* Ferns 28 29 9 a m CUH* 30 Bonsai MAY 1 p.m WFA 1 Sunday at One Tour > 7pm. CUH 2 NW Orchid Society 3 Noon-7 p.m WPA 4 AF Plant Sale 12:10 p.m. HUB Annuals Lecture 7 pm. CUH* Herbs 7:30 p.m CUH Seattle Rhododendron Society 10 a m. -2 p.m. WPA 6 AF Plant Sale 7 p.m. CUH* Perennials Noon-9 p.m. WPA 6 Late Rhododendron Show 9 am. CUH* 7 Bonsai 10 am.-5 p.m. CUH* Annual Bonsai Exhibit JO a.m.-2 p.m. CUH Miller Library Open 1-7:30 p m WPA Late Rhododendron Show JO am. -4 p.m. CUH* 8 Annual Bonsai Exhibit 11 a m - 5 p.m. WFA Late Rhododendron Show J p m. WPA Sunday at One Tour 7:30 p.m CUH 9 Seattle Rose Society 7 p.m. CUH 10 Puget Sound Mycological Society 10 a m. CUH 1 1 Curious Plants 7 p.m. CUH* Herbs 7 am CUH 12 Rhododendron Hybridizers 7:40 p.m. CUH Rock Garden Society 7:30 p.m CUH 13 Shady Perennials 9 am. CUH* 14 Hanging Baskets J p.m WPA 16 Sunday at One Tour 7 p m. CUH 16 When Country Came to City 17 12:10pm. HUB 18 Rhody Pruning 8 a m. CUH* 19 Wildflower Tour 7:30 p.m CUH Chrysanthemum Society 7:30 p m. CUH 20 Primrose Society JO am CUH* 21 Rock Garden JO am. WPA* Thirstless Garden JO a m -2 p m CUH Miller Library Open J p.m. WPA 22 Sunday at One Tour 23 7p.m CUH 24 AWL JO am. WFA 25 Explorers' Walk 26 27 28 J p.m. WFA 29 Sunday at One Tour 30 31 JUNE 1 Sam. CUH* Whidbey Island Tour 12:10 p.m. Herb Garden Tour 7:30 pm. CUH Seattle Rhododendron Society 7:30 p.m. CUH* 9 N.H.S. LECTURE Dr. John Mickel 1-5 p m CUH 3 N.H.S. Fern Festival and Sale 9 a m. -noon CUH* 4 Container Landscaping JO am. -2 p.m CUH N.H.S. Fern Festival and Sale J p.m WFA 6 Sunday at One Tour 6 7 JO am. CUH 8 Vines 7:40 p.m. CUH 9 Rock Garden Society 7:30 p.m. CUH 10 New Home Landscape 11 I p.m WPA 12 Sunday at One Tour 7:30 p.m CUH 13 Seattle Rose Society 7 p.m. CUH 14 Puget Sound Mycological Society 7:30 p.m. WPA Japanese Garden Society J2.10 p.m. HUB 15 Campus Tree Walk 7:30 p.m. CUH 16 Chrysanthemum Society 17 18 J pm WFA 19 Sunday One Tour |k-5 p.m CUH Rictus Society 7 p.m CUH 20 Kew Gardens 21 JO am. WPA 22 Explorers' Walk 23 24 25 J p.m WFA 26 Sunday at One Tour 27 28 29 30 CUH = Center for Urban Horticulture WPA = Washington Park Arboretum HUB = Husky Union Building * = Fee URBAN HORTICULTURE COURSES m kagit Valley Flower Tour Brilliant fields of floral color, fine nurseries, and bulb demonstration gardens await spring visitors to the Skagit Valley. Join us on this mid-week tour of the Skagit Valley as the tulip fields reach full bloom. Beginning Bonsai Learn the aesthetics and the techniques of this ancient Japanese art form. In this hands- on workshop students may begin a bonsai from a new nursery plant or restyle a bonsai they already own. YOUR LEADER: Van Bobbitt DATE: Thursday, March 31, 8 a.m. to 5 p.m. FEE: $35 (includes transportation) Northwest Native Plants Get acquainted with Northwest native trees, shrubs, and perennials. Discover how so many plants combine beauty with low main- tenance. See these plants in a beautiful pri- vate garden and in the arboretum; notice how well they combine with rhododendrons, ca- mellias, and other “exotics.” INSTRUCTOR: Gayle Walters DATES: Wednesday, April 6, 7 to 9 p.m., and Saturdays April 9 and 16, 10 a.m. to noon. FEE: $20 A Perennial A-B-C tfhe use of perennials in gardens is growing in popularity, yet getting started can be daunt- ing. In this basic course learn soil preparation and where to find good perennial plants. Dis- cover how to combine perennials with spring bulbs and annuals and add perennials to es- tablished shrub borders. INSTRUCTOR: Mary Robson DATE: Thursday, April 7, 7 to 9 p.m. FEE: $10 INSTRUCTOR: Jane Nelson DATES: Saturdays, April 9, 16, 23, 30, May 7, 9 to 11 a.m. FEE: $45 Spring Care , Summer Watering — Secrets to a Beautiful Lawn Learn the fundamentals necessary to make your lawn attractive and healthy. Lecture and handouts will cover proper watering tech- niques to conserve water yet maintain a lush lawn. Discover how to solve problems such as compaction, thatch accumulation, poor drainage, disease and pest problems. INSTRUCTOR: Ciscoe Morris DATE: Tuesday, April 12, 7 to 9 p.m. FEE: $10 Mercer Island Tour Come with us as we visit beautiful private gardens in their full spring bloom. Transpor- tation will be provided from the Center for Urban Horticulture, with pick-ups in Bellevue and Mercer Island (by special arrangement). TOUR LEADERS: Van Bobbitt and Rebec- ca Johnson DATE: Thursday, April 21, 9 a.m. to 2 p.m. FEE: $13 (includes transportation) REGISTRATION FORM Urban Horticulture Courses — Preregistration Required COURSE FEE NAME(S) TOTAL $ CHECK ENCLOSED FOR $ Checks payable to University of Washington. No bank cards. Registrations filled in order received. Limited class enrollment; classes fill rapidly, so register early. Refunds: Requests must be in writing or in person. Requests received seven days or less from first class meeting have a $2 handling fee deducted. No refunds after first class meeting. ^^AME. ADDRESS Street Phone: Day Evening. City State ZIP Code Mail payment and registration to: Urban Horticulture Courses, GF-15 University of Washington Seattle, Washington 98195 A Gift of Learning: Give a gift certificate in the amount of one of the courses. Call Jan Davis for details (545-8033). Spring Wildflower Tour Travel over Stevens Pass and visit Wenatchee’s Ohme Gardens — an alpine garden in a natural setting high above the Columbia River. Return through Blewett and Snoqualmie Pass and follow our native wild- flowers as they emerge from the winter snow. TOUR LEADER: Jan Pirzio-Biroli DATE: Thursday, May 19, 8 a.m. to 6:30 p.m. FEE: $35 (includes transportation & fees) The Thirstless Garden Contrary to popular belief, the Puget Sound Basin is not bathed in continuous rain — the drought of 1987 was a prolonged version of our typical summer rainfall pattern. This class will explore some easy and useful ways to free yourself from a thirsty garden. The morning session will focus briefly on the climate and water availability in the Puget Sound Basin and then cover appropriate soil conditioning and maintenance techniques. The second half of the class will delve into the array of trees and shrubs, and techniques for using them, that are well suited for water con- serving gardens in the Pacific Northwest. INSTRUCTORS: Timothy Hohn, curator, and Christina Pfeiffer, horticulturist, Wash- ington Park Arboretum DATE: Saturday, May 21, 10 a.m. to 3:30 p.m. FEE: $17 Introduction to Rock Gardens Discover how alpine and rock plants can add beauty to even the smallest space in your garden. A tour to a private garden will follow an introductory lecture on easy-to-grow rock garden plants. INSTRUCTOR: Rosina Mclvor DATE: Saturday, May 21, 10 a.m. to noon FEE: $10 Renovating Trees and Shrubs Wondering what to do with your overgrown trees and shrubs? This beginning workshop will teach you how to improve the health, appearance, and flowering of trees and shrubs through proper renovation. Following an introductory lecture, you will practice ren- ovating a shrub and a small tree. INSTRUCTOR: Phil Renfrow DATE: Saturday, April 23, 9 a.m. to noon FEE: $15 Hardy Ferns for Northwest Gardens Learn about the wide variety of hardy ferns that can be used in Northwest gardens. Class includes slide lecture of the available ferns, their culture, uses and selection. The second session will focus on propagation, including a demonstration of how to collect and sow spores. Participants will receive ferns from a hands-on crown division lesson. INSTRUCTOR: Judith Jones DATES: Tuesday, April 26 and Thursday, April 28, 7 to 9 p.m. FEE: $15 Herbs for Your Garden Learn to grow, harvest, preserve, and use herbs. If you are just starting, this class is an ideal overview. If you have some herb gar- dening experience, there are countless tidbits to be picked up. This class covers all applica- tions of herbal lore — culinary, medicinal, aromatic, decorative, dyeing, companion planting, and cosmetic. A field trip will allow you to see, touch, smell, and taste these herbs on a working herb farm. INSTRUCTOR: Diana Vaughn DATES: Wednesdays, May 4 and 11, 7 to 9 p.m. and Sunday, May 15, 2 to 4 p.m. FEE: $25 For the Experienced Perennial Gardener Learn the what, where, and how with un- usual perennials. Difficult-to-find perennials cultivars will be featured. Find out where to find them, how to propagate them, and how to use them in your garden. Examples will cover ground covers, climbers, bog and water-side plants. INSTRUCTOR: Susan Buckles DATE: Thursday, May 5, 7 to 10 p.m. FEE: $13 Hanging Basket Workshop Discover how to plant, establish and maintain a colorful hanging basket. In this hands-on workshop, you will create eye-catching dis- plays— one basket for sun and one for shade. Materials provided. INSTRUCTOR: Peggy Campbell DATE: Saturday, May 14, 9 a.m. to noon FEE: $25 Whidbey Island Garden Tour Visit the Meerkerk Rhododendron Gardens which are managed by the Rhododendron Society. See an iris fancier’s garden — 200 varieties should be near peak bloom. And enjoy the island’s rural atmosphere and scenic beauty. TOUR LEADER: Van Bobbitt DATE: Wednesday, June 1, 8 a.m. to 5 p.m. FEE: $35 (includes transportation & fees) Landscaping with Containers Bring your patio to life! Small spaces require creative use of plants and containers to create an environment of beauty, privacy, and se- renity. Learn how to landscape entrance courts, patios, terraces, courtyards, porches, and balconies with appropriate trees, shrubs, and flowers in containers. INSTRUCTOR: Pat Campbell Kush DATE: Saturday, June 4, 9 a.m. to noon FEE: $15 Phonathon Hearty thanks to all of you who responded to the Urban Horticulture/Arboretum pho- nathon in the fall. Phonathon pledges totalled $14,468, and as of February 10 we have re- ceived $13,083 in fulfillment of those pledges, with several gifts still to be com- pleted in installments. Add to that an equip- ment grant of $8500 from the Weyerhaeuser Foundation, a direct result of Dr. Tukey’s pre- phonathon letter, and you’ll see how signifi- cant a boost the phonathon has given us in equipping the new Douglas Conservatory and caring for the Arboretum plant collections. Below is an honor roll of phonathon donors who have given or pledged $100 or more as of February 10. They will help us celebrate the opening of the Douglas Conservatory at a party this spring. Once more, our thanks for all gifts large and small. R. David Adams John Anderson Rodney and Sue Bailey (Evergreen Services Corp.) Susan and Ronald Bean Vickie Beres (Custom Signs) Tom Berg (Berg’s Landscaping) Elizabeth and Lyman Black Archie Bloom Jacelyn and Alex Boschok Mae Claypoole William and Leah Collins Patricia Danford Bruce Dees Rosamond Dennison (Flowers by Roz) Arthur Dome Terry Eckman Enid and Leonard Eshom Dr. Charles Evans Christine and Bjorne Hansen Bill Harlan (Eastside Spraying Service) Jun Koh Harui (Town & Country Nursery) Jan Hurley James and Dorothy Hussey Margaret Irwin Robert Johnson (Emerald Turfgrass Farms) Don and Betty Kennedy Arthur and Mareen Kruckeberg Ted and Melissa Lagreid Eileen MacDonald Archie and Betty Morrison Micheal Moshier Landscaping Sarah and James Navarre Jerry Packard K. Timm Patterson (Timms) David Pfeiffer John and Grace Putnam Dr. Fred Reebs Walter and Margaret Reid Val Rogan R. Jerry Rosso Elva and Peter Schmidt Beulah and William Stevens Lily and Bobby Takatsuka Wade and Catherine Volwiler Robert and Kathleen Warne Patricia Way Sheila and Elliot Walters Weyerhaeuser Company Foundation (through Robert and Phyllis Gemmell) David Whatmore Maxine Williams Robert and Betty Wing Fred and Patricia Wright Pressy and Florencio Zaballero Urban Horticulture Presents WASHINGTON PARK ARBORETUM Washington Park Arboretum The Graham Vistors Center is open week- days, 10 a.m. to 4 p.m. and weekends noon to 4 p. m. If you have any extra time, we could use weekend volunteers (especially on Satur- day). Call 543-8800 for information. Arbor Weekend — April 9 & 10 Washington State Arbor Day is observed on the second Wednesday in April — April 13 this year. The Washington Park Arboretum will start celebrating early with an “Arbor Week- end" program on Saturday, April 9, and Sun- day, April 10. Activities will include pruning demonstrations, lectures on proper tree care, and Arboretum tours featuring top-rated trees for our urban landscape. Representa- tives from the International Society of Ar- boriculture (a professional arborists’ organi- zation) and the Washington State University Master Gardeners will be on hand to answer your tree care questions. For a complete schedule of events call the Washington Park Arboretum at 543-8800. Graham Visitors Center Come to the Plant Sale III! The Arboretum Foundation’s Annual Plant Sale will be held at the Graham Visitors Cen- ter on Wednesday, May 4, noon to 7 p.m., and Thursday, May 5, 10 a.m. to 2 p.m. It is the largest plant sale on the West Coast and is a must for every gardener from novice to old- hand. If you’re not on the mailing list you may call 325-4510 for a catalog. The Seattle Rhododendron Society will sponsor a show at the Graham Visitors Center on May 7 and 8. See gorgeous rhododendrons in flower and talk with the experts! Do You Have Sick Plants Washington State University Master Gar- deners will be at the Graham Visitors Center every Saturday and Sunday, 12 noon to 4 p.m., to answer your gardening questions. If you have a sick plant, bring in a sample of the damage for diagnosis. Master Gardeners can also provide WSU-approved recommenda- tions for controlling garden pests. TOURS Buds are bursting, new shoots sprouting, leaves unfurling . . . branches and stems sport new adornment as pink, lavender, and yellow blossoms unfold. The pagentry of spring is on parade at the Arboretum. Come see the celebration. The following guided tours are FREE and begin at Graham Visitors Center. Reserva- tions are not required. Sunday at One Every Sunday at 1 p.m. guided tours begin at the Graham Visitors Center. Knowledgeable guides will enrich your understanding of old favorites as well as introduce you to new as- pects of the Arboretum’s collections. Explorers’ Walks An Arboretum plant expert leads 2-hour walking tours for plant enthusiasts the fourth Wednesday of every month from 10 a.m. to noon. Group Tours Special guided tours for school groups, garden clubs, and other organizations can be arranged with three weeks’ advance notice. Call 543-8800 for details. in a 00 Os 0) e X a UJ U-, o c o "5) c UJ .£ iv -c in £ (Js 00 c D _Q ) 53 on Non-Profit Org. U.S. Postage Paid Permit No. 62 Seattle, WA