URBAN HORTICULTURE PRESENTS AUTUMN 1993/Center for Urban Horticulture/Washington Park Arboretum/College of Forest Resources/University of Washington/Vol. 10, No. 4 ' ■. - •' ; ■ .. k ■ ■ ' ^ if I L V CENTER NEWS GONZALEZ ARRIVES Nk Assistant Professor Rico Gonzalez arrived in mid-June to begin serving on the CUH faculty. He is preparing to teach UW courses in landscape plant management and in landscape plant recognition, to advise graduate students, and to take leadership in our undergraduate major in urban forestry. Within the next few years his research •will be conspicuous on the CUH grounds, as he studies the effects of v/c various urban stresses on plant performance. k. OZONE RESEARCH AT CUH ■j v. Dr. KyungUee, visiting faculty from Seoul National University in Korea, has just completed his research here on the effects of ozone pollution on tree health. Ozone at the levels found in heavily polluted cities can quickly damage some poplars, but red maples, as demonstrated by his research, appear relatively immune. Evidently, ( we should be thankful that red maple is our most common street tree in Seattle! Other research by Dr. Lee demon- strates that phosphorus in the soil can decrease ozone damage, possibly by • \ v , • • ' " V * 1 * , . ' ! / y V -1 • I improving a plant’s general vigor and disease -resistance. Dr. Lee performed his research in the Douglas Research Conservatory. a- FARMER, RICH GRADUATE • Two of our students graduated with master’s degrees at the end of the spring quarter, and their work repre- sents the breadth of study ongoing here at CUH. Jenkins Farmer research found that the learning significance of a fourth-grade student field trip to the Arboretum is increased markedly by a follow-up activity in the classroom. Lauren Rich helped the Suquamish tribe devise a plan to monitor water quality in their Doe-Kaq-Wats wetland. Lauren, who studied with Assistant Professor Kern Ewing, continues to work with local Native Americans on wetland issues. Jenkins, who studied with Professor John Wott, is now working on developing a garden master plan and education program at the Riverbanks Zoo & Botanic Garden in Columbia, South Carolina. COOPERATION WITH TREEMENDOUS SEATTLE The Center is beginning what prom- ises to be a lon£ relationship with TreeMendous Seattle, a volunteer group dedicated to the health of the urban forest in the Seattle area. The \ Center’s Union Bay nursery is one of several holding areas for tree seedlings maintained by TreeMendous for use in tree planting projects in parks and other urban sites. HOSTA GROUP FORMING Enthusiasts are invited to participate in a newly forming Seattle Chapter of the American Hosta Association. If you would like more information, contact Hugo or Karen Engel at (206) 486-6919. VOLUNTEER NEWS Volunteer news will now appear in each issue of this newsletter. We will provide updates and notifications of upcoming events for all CUH/WPA volunteers. We will also share astounding facts. For instance, did you know that in 1992, CUH/WPA volunteers gave nearly 12,000 hours of service? Over 50 volunteers, staff and students enjoyed a day-long expedition to the Padilla Bay National Estuarine Research Reserve on June 25. Sun, mudflats, shore birds, and an interest- ing program by Reserve staff made it a fun and educational outing for everyone in attendance. - / ~,. \ To request disability accommodation contact the Office of the ADA Coordinator, at least ten days in advance of an event: 543-6450 (voice) 543-6452 (TDD); 685-3885 (FAX) access@u. washington.edu (E-mail) V-. V / -A On \ GRAHAM VISITORS CENTER The Graham Visitors Center (GVC) and the Arboretum Foundation Gift Shop are open weekdays from 10 a.m. to 4 p.m., and from Noon to 4 p.m. on weekends. SUNDAYS AT ONE (1 p.m.) Arboretum Guides lead FREE tours every Sunday highlighting plants of seasonal interest. Departs from GVC. MASTER GARDENERS Master Gardeners from Washington State University will be at the GVC every Sunday from Noon to 4 p.m. to answer gardening questions. SPECIAL TOURS -o Special tours for school classes, garden clubs and other interested groups can be arranged with three weeks' advance notice. LIBRARY NEWS -V Library Hours: Mondays, 9 a.m. to 8 p.m.; Tuesdays through Fridays, 9 a.m. to 5 p.m. The library and CUH will be closed November 11, 25, 26, and December 24. The Library will be open Monday evenings September through June, thanks to a grant from the Northwest Horticultural Society. Master Garden- ers will continue their Monday evening Washington Garden Clinic. N Recent library gifts received include $500 each from Mrs. Constance McCord and Robert C. Franklin. Gifts of $5000 each were received from both Winlock Miller and Carey Miller, sons of Elisabeth C. Miller. Thanks to these donors for their generosity in supporting library programs/materials. Long-time volunteer Susan Smith has accepted a job with the Pike Place Market Foundation. Susan has been ai^^ invaluable helper in the library since its inception. We thank her for her extensive help and wish her the best in her new job. * •, i ♦ ARBORETUM OUNDATION NEWS Call the Arboretum Foundation at 325-4510 for more information about: FALL BULB SALE UNIVERSITY BROWN BAG GARDEN TALKS General interest gardening talks for University faculty, staff, students. FREE. 12:10 to 12:50 p.m. Beautiful bulbs, winter-flowering wonders, and more will be available at the Graham Visitors Center (GVC) on October 3, from 1 1 a.m. to 5 p.m., and October 4, 10 a.m. to Noon. GREENS GALORE The Greens Galore sale will be held December 4, 10 a.m. to 4 p.m., at the GVC. Buy a variety of exotic greens, cones, and other items for holiday decorating- or the finished decora- FALL COLOR WALK October 6 Meet at the Red Square entrance to Suzzallo Library. CUH graduate student Joanna Beitel leads this campus walk highlighting interesting trees and shrubs for fall color. Learn how and why color develops, and find out which plants will work well in your own yard. MAKING GARDEN POTPOURRI r NORTHWEST ^HORTICULTURAL Society news Call the NHS office at 527-1 794 for information on the following events: FALL LECTURES: Several fall lectures and special events are being planned. For information about upcoming educational events, or information on joining NHS, please call the office between 9 a.m. and 5 p.m., Monday through Friday. i . ^ October 20; Anderson Hall, Room 22 Judy Evans shares tips and tricks for creating potpourri with Northwest garden plants. Come savor the samples, watch Judy’s demonstration, and learn how to enjoy your garden year-round. HOLIDAY PLANT IDEAS November 3; Anderson Hall, Room 22 Whether giving or receiving, it’s important to know how to care for that holiday plant. Dana Kelly, CUH graduate student, shares tips on how to care for cyclamen, amaryllis, and other popular plants. FIELD GUIDE TO THE CITY November 17; Anderson Hall, Room 22- Discover the city as a series of unique ecosystems. CUH graduate student Bill Kleindl illustrates how urban trees can be viewed as a forest, yards as prairies, and buildings as planting substrates. Experience this botanical overthrow of your view of Seattle! r / '■ PUBLIC EDUCATION STAFF: Dave Stockdale, Public Education Coordinator Jean Robins, Public Education Program Assistant Rebecca Johnson, CUH Building Services Coordinator Anita Drake, Public Education Intern, Colorado State University J Telephones: CUH- (206) 685-2692 WPA (206) 543-8800 * r / v' V ' ' ^ ,r ; .X October 1993 ■ . ' / Vv • ' V: . ; -• CALENDAR OF EVENTS /■; v 1 ' ' Sunday Monday Tuesday Wednesday Thursday Friday Saturday l- . ■ 9/22/93, 12:10 p.m., CUH Ecological Research at CUH 9/30/93, 6:30 p.m.* Spring Bulb Display i 9 a.m.* 2 Elements of Bonsai 9 a.m.r Ornamental Grasses 11a.m. WPA 3 Fall Bulb Sale— jv 1 p.m. WPA <35 Sundays at One Tour 10 a.m. WPA Fall Bulb Sale ' V' • '4 a 5 >. ■ Noon WPA 6 Wott's Going On? 12:10 p.m., UW Fall Color Walk 7 p.m.* Creating Fall & Winter Containers 7 >*•,*- J 8 » •S ' a Noon to 8 p.m., CUH* 9 Mushroom Exhibit ' j- •• 7 % 10 a.m. to 6 p.m., 10 cun- <&, Mushroom Exhibit 1 p.m. WPA Sundays at One Tour 6 p.m. CUH Association for Women in Landscaping 7 p.m. CUH Orchid Society ii ? 7:30 p.m. CUH 12 Puget Sound Mycological Society 7 p.m. CUH 13 Plant Amnesty V ( 7:40 p.m. CUH 14 Rock Garden Society — — - ' ■ ^ ' > 9 a.m.* 16 Elements of Bonsai Perennials Symposium 1 p.m. WPA 17 Sundays at One Tour a 2 p.m. CUH W Cascade Cactus & Succulent Society 7 p.m. CUH* Desert m Bloom t 18 a Noon WPA 19 Arboretum Tales T2:10p.m. HUB 20 Making Garden POtpourri 7:30 p.m., CUH* 21 Landscape Renovation 22 - 9 a.m.* 23 Elements of Bonsai 1 p.m. WPA 24 Sundays at One Tour n CE> 7 p.m. CUH Puget Sound Bonsai Association 25 ? 6 p.m. CUH 26 Association for Women in Landscaping 12:1thp.m. CUH 27 Urban Horticultural Update 28 29 9 a.m.* 30 Elements of Bonsai 1p.m. WPA 31 Sundays at One Tour cE> V "-S i v 7" -4 A ~~c -* November 1993 Sunday Monday Tuesday Wednesday Thursday Friday Saturday ' 7:30 p.m. CUH Iris Society i ? 2 12:10 p.m. HUB 3 Holiday Plant Ideas 4 5 10 a.m. CUH 6 Fp1| Fruit Shpw Noon WPA Master Gardeners 11a.m. CUH 7 Fall Fruit Show n 1 p.m. WPA CO Sundays at One Tour 7 p.m. CUH Orchid Society 8 ? 7:30 p.m. CUH 9 Puget Sound Mycological Society 7:30 p.m. CUH* 10 Companion Ericaceous Plants Noon WPA Wort's Going On? 7:40 p.m. CUH 11 Rock Garden Society 12 9 a.m;.* 1 3 Elements of Bonsai Noon WPA Master Gardeners 1 p.m. WPA 14 Sundays at One Tour jv CQ __ 15 ? Noon WPA 16 Arboretum Tales X m. ; , 12:10 p.m. HUB x 17 Field Guide to the City 18 5:30 p.m. CUH 19 American Society of , Landscape Architects 7:30 p.m. CUH* Small Fruits & Berries . 9 a.m.* 20 Elements of Bonsai Noon WPA Master Gardeners 1p.m. WPA 21 Sundays at One Tour ^x 2 p.m. CUH W Cascade Cactus & Succulent Society 7 p.m. CUH Puget Sound Bonsai Association 22 ? 6 p.m. CUH 23 Association for Women in Landscaping 24 25 - X 26 Noon WPA 27 Master Gardeners ^ N • 1 p.m. WPA 28, Sundays at One Tour <§3 29 30 \' '( . 1 x • * . ' 1 s X -• \ ■ _ / - 7 "T s December 1993 / . ' Sunday Monday Tuesday Wednesday Thursday Friday Saturday Noon, WPA 1 Wott's Going On? 2 j 9 a.m.* 4 Plant Propagation 10 a.m., WPA Greens Qalore 1 p.m. WPA 5 Sundays at One Tour r-x CO 6:30 p.m.* Holiday Wreaths 7 p.m.* Tree & Shrub Management -7:30 p.m. CUH Iris Society 6 ? - 7 p.m.* Tree & Shrub Management- 0 \/ . 7 p.m. CUH 8 Plant Amnesty 7:40 p.m. CUH 9 Rock Garden Society . '-V ' r 10 . > - \ - 9 a.m.* IT Plant Propagation t p.m. WPA 12 Sundays at One Tour cj-y5 CO 7 p.m. CUH Orchid Society 13 ? 7:30 p.m. CUH 14 Puget Sound Mycological Society 15 r / ■ xr 1 6 17 "x 18 1 p.m. WPA 19 Sundays at One Tour 2 p.m. CUH <35 Cascade Cactus & 'Succulent Society .-V - -x ‘20‘ ? Noon WPA 2 1 Arboretum Tales 22 23 24 s' u v- 25 - \ NT >/■ CUH = Center for Urban Horticulture WPA = Washington Parle Arboretum & = Master Gardener Clinic, Noon-4 p.m., WPA 1 ,'v ? = Washington Garden Clinic, HUB = Husky Union Building 4-8 p.m , CUH * = Fee . ' V x V J ' 'T , x . : \- j, v ;/ V'"' ' V y ;■ r s' UBLIC LECTURE SERIES Parking at CUH is in a University' parking lot; students are responsible for their own $1 .50 parking fees. Purchase tickets (quarters only) in the red ticket spitters in the parking lots. s' PLANT ENTHUSIAST Regional experts present in-depth lectures on specific plant groups. r/z s 7:30 to 8:30 p.m., CUH $2, payable at the door -Y LUNCH TIME GARDEN TALKS Informal talks/walks at the Center for Urban Horticulture. /< 12:10 to 12:50 p.m., CUH FREE ECOLOGICAL RESEARCH AT CUH September 22 COMPANION ERICACEOUS PLANTS November 10 In the Northwest, we love our rhododendrons. But we often over- look some other desirable members of their family that can really enhance the home landscape. Art Dome discusses an interesting array of ericaceous plants, including some for shade and some for sun, some for damp places and others for dry spots. There is more beyond rhodies than just heaths and heathers! Sites include the Arizona-Sonora Desert Museum, Saguaro National Monument, Tucson Botanical Gar- dens, Tohono Chul Park, Boyce Thompson Arboretum, Desert Botanical Garden, Biosphere II, and more! See the desert in bloom — this October! MASTER GARDENER LECTURES Practical gardening information for everyone, as presented by WSU Master Gardeners. 7:30 to 8:30 p.m., CUH $2, payable at the door m The land around CUH has been used many ways — for everything from a ity dump to student housing. This sensitive area is currently the focus of research on the control of invasive species, restoration techniques, and other topics. Join Center students and staff for this walking tour and learn more about what’s going on in the Ecological Research Area. URBAN HORTICULTURE UPDATE October 27 Just what is the science of Urban Horticulture and where is it heading? Join Professor Harold B. Tukey, Jr., as he talks about the interactions of plants and people in the urban environment. Many institutions nation-wide have recently initiated urban horticulture research and teaching programs; learn about these rograms and progress from other eas. . _ 7~ PLANTS AND GARDENS OF THE WORLD Unique combination of travelogue, and plant information. DESERT IN BLOOM: Plants and Gardens of Arizona LANDSCAPE RENOVATION . FOR HOMEOWNERS October 2 1 It’s time to do something about those overgrown shrubs, crowded flower beds, and tangled tree branches. Learn how to prioritize needs and begin renovating your existing landscape with Master Gardener Cass Turnbull. > SMALL FRUITS & BERRIES / A v ■ November 19 -v Y October 18, 7 to 9 p.m., CUH $5, payable at the door * Earlier this year, 25 adventuresome North westerners joined CUH staff on a garden tour of Arizona. Come leam about unique desert flora and share their tour experience as presented by Tracy Omar and Dave Stockdale. Learn how to plant, maintain, protect and harvest a variety of small fruits and berries easily grown in your home garden. Master Gardeners share tips on everything from cherries to berries! V J - •> Ay Y ' , i ' .■ Y- . / W' Y URBAN HORTICULTURE COURSES Pre-registration is required for all CUH Courses and Tours. Each course is offered only once, but may be conducted over several class periods on different days. Note “Dates & Times” listings for each course. PLANNING YOUR SPRING BULB DISPLAY The pleasures of a spring bulb display begin with the design and installation of your garden this fall. Learn which bulbs to select, how to plant and care for them, and how to incorporate your bulb display into your existing landscape. Ideas for extending this display throughout the seasons with other types of bulbs will be presented. Date & Time: September 30, 6:30 to 9 p.m. Instructor. Mary Robson Fee : $17, r\ SELECTING & USING ORNAMENTAL GRASSES Ornamental grasses introduce an element of elegance into the home landscape. They can provide interest- ing texture, form, movement and color. Learn which grasses perform best in our area, how to incorporate them into your landscape, and how to keep them healthy and attractive. Following a short slide lecture, enjoy a field trip to a nearby site to learn more about these engaging landscape plants. Date & Time: October 2, 9 a.m. to Noon Instructor: Eric Nelson Fee: $19, transportation not included. ELEMENTS OF BONSAI Explore the unique art and science of bonsai in this combined demonstration and hands-on course. Explore different bonsai styles, discuss cultural concerns, and refine your training techniques as you work on specimens from home. Instructor is current President of the American Bonsai Association. Dates & Times: Six-part course; October 2, 16, 23, 30, November 13, 20, 9 to 1 1 a.m.^ach day. Optional field trip to local nursery to leam how to select plant materials on October 9. Instructor: Jane Nelson Fee: $55 CREATING FALL & WINTER CONTAINERS Discover how to design and plant colorful, long lasting containers that will provide interest from fall through spring. Leam about container and soil medium selection, winter care, and other seasonal concerns. Course includes demonstration of assembling several styles of containers. Date & Time: October 6, 7 to 9 p.m. Instructor: Peggy Campbell Fee: $15 PLANT PROPAGATION Have fun and save money — leam to propagate plants at home. Begin with lectures on propagation by seed, cutting, layering, and division. Then participate in a hands-on lab learning to propagate by seed. Leam tricks that mother nature never intended for you to know and start next year off by growing your own transplants at home. Dates & Times: Two-part course; December 4 & 11,9 a.m. to Noon each day. Instructor: Scott Vergara Fee: $29 TREE & SHRUB MANAGEMENT FOR HOME LANDSCAPES Decision making is the hardest part of gardening. Learn about tree and shrub management from an expert. Study when to prune and train, how and when to fertilize, efficient water management, plant selection, planting techniques, pest management, and more in this comprehensive course. Develop a management schedule and take the guess work out of landscape gardening. Dates & Times: Two-part course; December 6 & 7. 7 to 9:30 p.m. each night. Instructor: Ciscoe Morris Fee: $27 HOLIDAY WREATHS Celebrate the holidays with a wreath made of fresh fir. cedar, holly, pine and other more exotic natural items, and a decorative bow. Easy to follow instructions enable each student to construct a unique holiday wreath to take home or present as a gift. All materials provided (but you may bring additional specialty or keepsake items from home). Date & Time: December 6, 6:30 to 9 p.m. Instructor: Dave Stockdale Fee: $25 / !/ /> 1993 perennials SYMPOSIUM rn,,if ^ & sPEAKESS. FEAJlM^^ cottage garden design i f Ftedericksburg, Virginia, is design I Phillip Wvrs°^,°wU1 present his new ideas cm ^ was {eatured in the . as , r^S-ed cm - — 1993, issue of Got __ _I/lpPFREN N1ALS will discuss .he opp— “^perennials. summer throug a EV EXPERIENCE _ n ESN Withev & Char ■ s will loin Seattle developing Nonh«s. ate residence and the share their expenences of garden P'a^d Votamcal garden, include the ^"‘nnial border at the Belle process of designing the p pppENNIALS L0W.WATERVSE PERENNIALS rnW-WAI^^"- . u ln ■ With low-water use perennials. unff 0f gardening with 1 , proper sod Improve youT u^rSt^oHER will discuss topics s ^ hwest. » — preparation and se CONSIDERATION PERENNIALS FOR tv To conclude. Phillip *«** 8:30 a.m. Saturday, October 4 p.m.; Pre-registratio j 45, includes i,,«rh req mired t University of Washington, CF-1 5 College of Forest Resources Center for Urban Horticulture Seattle, WA 98195 AUTUMN 1993 / - /A l- &K / \ SC ' NONPROFIT ORG. U.S. POSTAGE PAID Seattle, Wash. PERMIT NO. 62