Hallelujah! A generous gift by the Pendleton and Elisabeth Carey Miller Charitable Foundation will enable us to do something we have dreamed of for
years: beginning March 15, the Miller Horticultural Library will be open on Saturdays from 9 a.m. to 3 p.m. (with a break in July and August). Our
new Saturday hours will also feature a walk-in clinic sponsored by the WSU/King County Master Gardeners, Just as on Monday evenings. Incidentally,
we are now in our fourth year of being open Monday evenings, thanks to the Northwest Horticultural Society whose grants also support our lending
collection and library outreach education, as well as student scholarships. And now the NHS is planning for its second exciting benefit auction to raise
money for the endowment that ensures the Library's future. The auction will be May 4, at the Center; tickets are limited, so for information please
contact the NHS office. In addition, the Miller Foundation has again granted us a $15,000 matching challenge, whereby they will match each gift to
the library up to a maximum of $1,000; this is a terrific opportunity to double the value of your contribution. Our profound thanks to all you kind
donors who empower us to increase the quality and quantity of Library service each year.
Trees hold slopes! Timely research by CUH graduate student Kathy Parker and me over 1996 illustrated a little-appreciated value of our urban forest,
namely its contribution to slope stability. We studied the relationship between vegetation and landslides along the famously unstable Magnolia Bluff in
Seattle, and found that trees at the slope's crest may mean no landslides below. (This is not an absolutely reliable correlation on all slopes, as other
factors such as differential geotectonic instability can foster a landslide no matter what the vegetation.) Our research in Magnolia confirmed what
slope engineers have long known, that a well vegetated slope - with many different species of trees, shrubs, and herbaceous plants - is much more
likely to remain stable than is a slope devoid of diverse woody plants.
Finally, welcome to all you NHS members who, from this issue on, will receive our quarterly newsletter as an additional benefit of NHS membership!
Clement Hamilton, Director, Center for Urban Horticulture
special even'ts
" USING NATIVE PLANTS TO ATTRACT WILDLIFE: 1997 Native Plant Symposium
Saturday, May 10, 9 a.m, to 3 p.m.
NHS Hall, Union Bay
$30, includes lunch and special booklet; pre-registration required
Starting Right: Garden Design Principles Using Native Plants
Charles Anderson, Landscape Architect with Anderson & Ray, Inc., will share design principles for using native plants to create woodland,
rock garden or other naturalistic habitats. He will present specific plant requirements and discuss why he recommends particular ground
covers, perennials, shrubs, and trees for creating specific landscapes.
Wildlife Enhancement Features for Habitat Landscapes
Russell Link, Wildlife Biologist with Washington Department of Fish and Wildlife, will review habitat enhancement features for
encouraging specific small mammals, birds, reptiles and amphibians into your garden. Items discussed will include nesting boxes,
hibernation mounds, perching platforms, and more.
Butterflies & Their Plant Partners
Sharon Collman, WSU Affiliate Researcher & UW-CUH Ph.D. student, will define the habitat requirements for butterflies and moths and
discuss the importance of plant selection and arrangement for their survival. She will also address issues surrounding the release of
butterflies in our area.
Attracting Birds to Your Garden
Landscape Architect Keith Geller will discuss creating a habitat for birds by using a mix of native and non-native plants. He will begin
with ground cover suggestions, and work his way up to the canopy.
FREE WATER CONSERVATION LECTURES
The following programs are being provided for FREE because the costs have been underwritten by the
Seattle Public Utilities and its wholesale water customers. Pre-registration is required for these programs.
Creating A Beautiful Water-Wise Garden
Thursday, April 24, from 7 to 9 p.m.
Douglas Classroom, Union Bay
Free program; attendance limited to 50
Join instructor Jil Stenn, of Stenn Design, and learn about the principles of water-wise garden design, including site planning, plant
selection, and other economical and resource-efficient strategies for creating attractive home landscapes.
Your Automatic Irrigation System
Thursday, May 8, from 7 to 9 p.m.
Douglas Classroom, Union Bay
Free program; attendance limited to 50
Matthew Suhadolnik, from SvR Design Company in Seattle, discusses how to ensure peak performance from your sprinkler system,
thus saving water and not wasting it. Design considerations, installation procedures, irrigation scheduling, and maintenance issues will
be covered.
Drip Irrigation Made Easy
: Thursday, June 12, from 7 to 9 p.m.
I V ^ Douglas Classroom, Union Bay
Free program; attendance limited to 50
Discover how to design and use a drip irrigation system appropriate to your unique garden beds with Howard Stenn of Stenn Design.
Get a hands-on look at drip components and how they are assembled, learn where to buy and what sources to avoid, and discover how
to schedule and use your system in an economical manner.
april
calendar of events
1.3 UB
African Violet Show
20 9anv4pm, UB
Master Gardener Plant
Sale
2:30pm, U6
Cactus Society
27 lOam
Artwretum Foundation
Spring Plant Sale
Every Sunday;
Ipm, WPA
Sunday at One Guided
Tour
7 7:30pm, UB
Iris Society
14 7pm, UB
Orchid Society
8 7pm, UB*
Soil Science for
Gardeners
15 7pm. UB*
Soil Science for
Gardeners
7pm, UB*
NHS Lecture: Artful
Gardens & Garden Art
22 7pm, UB
Assoc. Women in
Landscaping
7pm, UB*
Soil Science for
Gardeners
^ 7pm, UB*
Botanical Illustration
9 lOam, WPA*
Arb. Focus Walk:
Rhododendron Glen
7pm, UB*
Botanical Illustration
7pm, UB
PtantAmnesty
7:30pm, WPA*
The Contained Garden
16 7pm, UB*
Botanical Illustration
23 7pm, UB*
Botanical Illustration
30 7pm, UB*
Botanical Illustration
o 7pm. WPA*
Prop Shop: Grafting
Skills
10 7pm, WPA*
AF Crafts: Mixed
Containers for Spring
7:40pm, UB
Rock Garden Society
17 Sam & 2pm*
Miller Garden Tour
7:30pm, UB*
WSU Lecture: Mulch
Madness
7;40pm, UB
Rock Garden Society
24 8:30am, UB*
NHS: Urban Garden
Symposium
lOam, UW
Arbor Day Fair
7pm, UB
Creating A Water-Wise
Garden
18 9am & Sun*
Miller Garden Tour
25 10am, UW
Arbor Day Fair
5 9am, WPA*
Arboretum Plant
Study Program
10am, UB*
Basics of Rose Care
12 Sam, UB*
Design Studio: Focus
on Mixed Perennial
Borders
llam4pm, UB
African Violet Show
19 Sam, WPA*
Arboretum Plant Study
Program
San>4pm, UB
Master Gardener Plant
Sale
26 10am, WPA
Arboretum Foundation
Spring Plant Sale
10am, UW
Arbor Day Fair
Every Saturday:
1pm, WPA
Saturday at One
Guided Tour
may
4 3pm, Opera House
AF Seattle
Symphony Benefit
Concert
6pm, UB
NHS Garden Party &
Auction
18 2:30pm, UB
Cactus Society
Every Sunday:
Ipm, WPA
Sunday at One
Guided Tour
12 7pni.UB
Orchid Society
19 7pm, UB
Puget Sound Bonsai
Association
6 1:30pm*
Knowing & Growing
Plants from Miller
Garden
13 1:30pm*
Knowing & Growing
Plants from Miller
Garden
20 1:30pm*
Knowing & Growing
Plants from Miller
Garden
7pm, UB
NHS Annual Meeting:
Hartlage Lecture
27 7pm, UB
Assoc. Women in
Landscaping
7 7pm, UB*
Botanical Illustration
14 10am, WPA*
Arb. Focus Walk:
Magnificent
Magnolias
7pm, UB*
Botanical Illustration
21 7pm, UB
TREEmendous Seattle
8 7pm, UB
Your Automatic
irrigation System
15 7:30pm, UB*
WSU Lecture: Trouble
Free Plants for NW
Gardens
7;40pm, UB
Rock Garden Society
22 7pm, UB*
Garden Pest ID &
Management
29 7pm, UB*
Garden Pest ID &
Management
16 8:30am*. returns
5/17
Garden Tour of
Portland
10 Sam, UB*
Symposium: Using
Native Plants to
Attract Wildlife
Sam, UB*
Design Studio: Focus
on Edible Landscapes
17 Sam, WPA*
Arboretum Plant Study
Program
24 10am, WPA*
AF Crafts: Hypertufa
Basics
Every Saturday:
Ipm, WPA
Saturday at One
Guided Tour
, jur
ie_
IK
15 2:30pfn, UB
Cactus Society
Every Sunday:
Ipm, WPA
Sunday at One
Guided Tour
9 7pni, UB
Orchid Society
1
3 7pm, UB
Assoc, for Women in
Landscaping
10 7:30pm, UB
Puget Sound
Mycological Society
24 7pm, UB
Assoc. Women in
Landscaping
11 lOam.WPA*
Arb. Focus Walk:
Japanese Garden
7pm, UB
PlantAmnesty
5 7pm. WPA*
Prop Shop: Intro to
Micropropagation
Techniques
12 7pm, UB
Drip Irrigation Made
Easy
7:40pm, UB
Rock Garden Society
19 7:30pm, UB*
WSU Lecture: Small
Water Features
6 Ipnv^M^^B
NHS Fern Festival
7pm, UB*
NHS Fern Lecture
20 8am*, returns 6/21
Vancouver Garden
Tour
27 7pm, UB* . , '
NHS Lecture:
Euphorbias
'■ ' . ■■ y
^ ■ A
■ ( ^ , /'
7 9am, WPA*
Arboretum Plant Study
^ Program
• 10am*2pm, UB
„ NHS Fern Festival
14 9am. UB*
' Design: Architectural
' Elements
21 9am, WPA*
Arboretum Plant Study
Program
28 9am, UB*
Construction: Cement
Ponds
10am, UB*
AF Crafts: Spring
Arrangements
Every Saturday:
Ipm, WPA
Saturday at One
Guided Tour
UB = Union Bay Campus UW = University of Washington Main Campus
WPA = Washington Park Arboretum * = Fee
university of Washington center for urban horticuiture
The University of Washington Center for Urban
Horticulture is dedicated to research, teaching, and
public service concerning the selection, management,
and role of plants and of ecosystems in urban
landscapes.
Director
Clement W. Hamilton
Urban Horticulture Newsletter, Vol 14. No. 2
Continuing and Public Education
Douglas Research Conservatory
Elisabeth C. Miller Library
Otis Douglas Hyde Hortorium
Undergraduate and Graduate Education
Union Bay Gardens
Union Bay Natural Areas
Washington Park Arboretum
Center for Urban Horticulture
University of Washington
Union Bay Campus
Box 354115
3501 NE 41st Street
Seattle, Washington 98195-4115
(206) 685-8033 phone
(206) 685-2692 fax
Washington Park Arboretum
Box 358010
2300 Arboretum Drive East
Seattle, Washington 98195-8010
(206) 543-8800 phone
(206)325-8893 fax
CUH/CFR Continuing & Public Education Staff
Dave Stockdale, CUH Adult & Professional Education
Coordinator
Dana Kirley, CUH Youth & Outreach Education Coordinator
Jean Robins. CUH Program Coordinator
Bev Gonyea, CFR Continuing Education Manager
Kirsten Bilodeau, CUH Education Program Assistant
Heather Moss, CUH Work Study Program Assistant
CUH Building & Rentals Management Staff
Becky Johnson, Union Bay Facilities Manager
Stacey Barnhill, Graham Visitors Center Building Manager
Cynthia Livak, Graham Visitors Center Building Manager
Ray Larson, Union Bay Assistant Facilities Manager
r
gardening & horticulture
programs
Botanical Illustration
Dates & Times:
Instructor:
Location:
Fee:
Seven-part course; Wednesdays, April 2, 9, 16, 23, 30 & May 7 & 14,
from 7 to 9:30 p.m. each night
Louise Smith, Botanical Illustrator, Seattle
Douglas Classroom, Union Bay ^
$120, not including materials (which will cost approximately $80-$100): pre-registration required •
This introductory level course will focus on developing accurate pencil drawing and wash and dry brush techniques. Students should
bring drawing paper and pencil only to the first class; an additional materials list will be provided at the first class, and students will be
given an option to purchase those items from the instructor or independently.
Basics of Rose Care
Date & Time: Saturday, April 5, from 10 a.m. to Noon
Instructor: Jeff Wyckoff, Rosarian, Seattle
Location: Douglas Classroom, Union Bay
Fee: $8 general public, $7 Arboretum Foundation members; pre-registration required
Learn how to care for America's favorite flower in this introductory level course that will cover plant selection, placement & planting,
fertilization, watering, pruning, pest management, and more.
Soil Science for Gardeners
Three-part course; Tuesdays, April 8, 15 & 22, from 7 to 9 p.m. each night
Mignonne Partington, Assistant Nursery Manager, Molbak’s Nursery, Woodinville
Douglas Classroom, Union Bay
$27; pre-registration required
Study the basics of soil science, such as soil composition and structure, nutrient availability, and soil water relations relative to plant
growth in this introductory level course. Learn how to improve soil structure and fertility and solve other soil-related problems.
Dates & Times:
Instructor:
Location:
Fee:
The Contained Garden From Start to Finish
Date & Time: Wednesday, April 9, from 7:30 to 9 p.m.
Instructor: Richard Hartlage, Director/Curator, Elisabeth C. Miller Botanical Garden, Seattle
Location: Graham Visitors Center, Washington Park Arboretum (WPA)
Fee: $8 general public, $7 Arboretum Foundation members; pre-registration required
Discover all the secrets for designing, planting, and maintaining beautiful, extended-season containers during this slide lecture and question
and answer presentation.
Knowing & Growing Piants from the Miiier Botanicai Garden
Dates & Times: Three-part course; Tuesdays, May 6, 13 & 20, from 1:30 to 4:30 p.m. each day
Instructor: Richard Flartlage, Director/Curator, Elisabeth C. Miller Botanical Garden, Seattle
Location: Miller Botanical Garden, Seattle
Fee: $42, does not include transportation to the garden (driving directions will be provided); pre-registration required
The Miller Botanical Garden contains many outstanding woody plants of interest and use to local gardeners, as well as many rare plants
prized by collectors. Join us for a unique opportunity to study these fine woody plants and learn how to grow them in your own garden.
Garden Pest Identification & Management
Dates & Times: Two-part course; Thursdays, May 22 & 29, from 7 to 9 p.m. each day
Instructor: Dr. Susan Miller, Consulting Entomologist, Longbranch, WA
Location: Douglas Classroom, Union Bay
Fee: $24; pre-registration required
Study the lifecycles of common landscape pests and learn to recognize early symptoms of infestation. Learn to diagnose pest problems
and study integrated pest management techniques to reduce or eliminate them in this introductory level hands-on course.
WSU Practical Gardening Lectures
These entry level lectures and demonstrations for beginning gardeners are planned jointly with the WSU Cooperative Extension Master
Gardener Program, and are presented by experienced WSU Master Gardeners and Cooperative Extension staff.
Mulch Madness
Date & Time:
Instructor:
Location:
Fee:
Thursday, April 17, from 7:30 to 9 p.m.
Suzanne Leger, WSU Master Gardener
Douglas Classroom, Union Bay
$5; pre-registration required
Trouble-free Plants for Northwest Gardens
Date & Time: Thursday, May 15, from 7:30 to 9 p.m.
Instructor: Mary Robson, WSU Area Extension Agent
Location: Douglas Classroom, Union Bay
Fee: $5; pre-registration required
Small Water Features
Date & Time: Thursday, June 19, from 7:30 to 9 p.m.
Instructor: Stephen Rutledge, WSU Master Gardener
Location: Douglas Classroom, Union Bay
Fee: $5; pre-registration required
design studio
These studios provide the opportunity to problem solve with a top landscape designer. These studios are not ior those individuals
interested in designing their garden from scratch, but rather are for persons working to correct or enhance existing landscapes.
Each studio includes a brief discussion of the focus topic, followed by opportunities for each attendee to discuss their needs with
the designer while the rest of the attendees listen to and participate in the problem solving discussions that ensue. In order to
enhance the studio experience, each student is asked to bring along a scale drawing of the garden area under consideration.
Focus on Mixed Perennial Borders
Date & Time:
Instructor:
Location:
Fee:
Saturday, April 12, 9 a.m. to 12:30 p.m.
Terry Hershey, Cotswold Garden & Design, Vashon
Douglas Classroom, Union Bay
$25; pre-registration required, class size limited to 15
Focus on Edible Landscapes
Date & Time:
Instructor:
Location:
Fee:
Saturday, May 10, 9 a.m. to 12:30 p.m.
Sue Moss, Sue Moss Garden Design, Seattle
Douglas Classroom, Union Bay
$25; pre-registration required, class size limited to 15
Focus on Using Architectural Elements in the Garden
Date & Time: Saturday, June 14, 9 a.m. to 12:30 p.m.
Instructor: Phil Wood, Phil Wood Garden Design, Seattle
Location: Douglas Classroom, Union Bay
Fee: $25; pre-registration required, class size limited to 15
construction demonstrations
Programs in this series each include a brief review of design considerations, a discussion of the materials needed (including
options, determining amounts needed, costs, and whereto find them), a review of the tools required, plus a demonstration if the
construction techniques and tricks necessary to complete projects on your own.
Building Garden Ponds Using Concrete & Concrete Block
Date & Time: Saturday, June 28, 9 a.m. to Noon.
Instructor:
Location:
Fee:
Kris Webb, Universal Supply & Accessories, Seattle
Greenhouse adjacent to Graham Visitors Center, Washington Park Arboretum (WPA)
$23 general public, $20 Arboretum Foundation members; pre-registration required, class size will be
limited to 20
youth & family programs
Sign-up for the Arboretum’s Spring Saplings Program
Calling all 3rd, 4th, and 5th grade classes! Join us this spring and learn about your environment through interactive games, observation,
and hands-on activities. Take cuttings, plant seeds, and take home a plant during our Spring Sprouts propagation program or explore a
freshwater wetland with dip nets, magnifiers, and an inflatable aquarium in our Wet & Wild program. Saplings will be offered Monday-
Friday, May 5-30, 10 to 11:30 a.m. or 12 to 1:30 p.m. This program is FREE, and very popular, so pre-registration is required; call 543-
8800 to reserve your spot.
Arbor Day Celebration
Learn about trees, animals, birds, water, recycling and other parts of a forest system and related ecosystems at the UW College of
Forest Resources’ 2nd Annual Arbor Day Fair. Discover how science, education and technology are helping us better understand the
global ecosystem. Activities will be conducted April 24 & 25, 10 a.m. to 3 p.m. for school groups, and April 26, 10 a.m. to 3 p.m. for
families and other youth groups. Pre-register for this FREE event by phoning 543-0867.
Explorer Packs in the Arboretum
Tools for the adventurous! These backpacks are filled with field guides, scavenger hunt ideas, magnifying lenses and activity ideas to
help you learn about the habitats, plants, animals and insects found in the Arboretum. Designed for children in grades K-6, each pack
can accommodate 1 to 15 youngsters. Spring packs include: Water Ecology Pack; Forest Habitat Pack; and our new TREEtective
Pack. Two hour rentals are available between 10 a.m. and 2:30 p.m., every day, year-round. Packs rent for $5 for families of 6 or
less, $3 for Arboretum Foundation member families, or $15 for groups of 7 or more.
Arboretum Guide Booklets for Parents & Educators
Youth Education Programs Guide- A complete and detailed listing of all the programs for youth and families in the Arboretum. The Guide
is published twice a year and is FREE. Call 543-8800 to receive a copy or be added to the mailing list.
. Children & Gardening Guide- This full color guide shows how to lead youth in gardening and nature-related programs and activities in the
Arboretum and Seattle area. The guide is $5 ($3 for educators) and can be purchased in the Arboretum Gift Shop.
Self-Guided Learning Opportunities
^Arboretum as your outdoor classroom. This 200-acre, centrally located urban forest offers a wealth of study material and
— . .j^ntal opportunities, and we will assist you in planning your visit by offering information on specific subject areas and plant
coij^d^S^'free of charge. Groups of 10 or more must schedule their visit with the Education Department by phoning 543-8800.
Guided Arboretum Hikes for Famiiies & Youth Groups
• Guided hikes through the Arboretum led by trained guides are available for your class, family, or youth group. These 60-90 minute walks
stress sensory interaction and discovery. Tour topics include: Foster Island Ecology; Native Plants & Ethnobotany; and Spring in
Action. Tours are available between 10 a.m. and 3 p.m., every day, year-round. Hikes cost $5 per 15 youth, and three weeks
advanced reservation is reqired; call 543-8800.
walks & tours
Tour: Elisabeth C. Miller Botanical Garden
Dates & Times:
Tour Guides:
Garden
Depart From:
Fee:
Section A— Thursday, April 17, from 9 a.m. to Noon
Section B— Thursday, April 17, from 2 to 5 p.m.
Section C— Friday, April 18, from 9 a.m. to Noon
Section D— Friday, April 18, from 2 to 5 p.m.
Richard Hartlage, Director/Curator and Michael Boswell, Head Gardener, Elisabeth C. Miller Botanical
East parking iot adjacent to Douglas Research Conservatory, Union Bay
$17, transportation provided; pre-registration required, each section limited to 14 persons
unique specimens in an aesthetic manner. Access to this garden is limited, so don t m.ss out!
Tour: Private & Public Gardens of Portland
Dates & Times: Depart Friday, May 16, at 8:30 a.m. and return Saturday, May 17, at 6:30 p.m.
Depart From: East parking lot adjacent to Douglas Research Conservatory, Union Bay
Fee: $135, includes transportation, hotel (based on double occupancy), two '^f^^hes, all entry fees; does not
include dinner on first evening or breakfast the second day. Pre-registration required, limited to 22 perso
Portland’s many beautiful gardens will soon be ablaze with color. Our tour will include such wonderful public
Garden Hoyt Arboretum, the Japanese Garden in Washington Park, Bishop’s Close, and the Crystal Springs Rhodendron Gardem W
So St the specScular Platt Lrden and the amazing/amusing Bella Madrona (formerly known as the Beasley Garden)- two of
America’s finest private gardens. We will be staying at the downtown Mallory Hotel.
Tour: Public & Private Gardens of Vancouver, B.C.
Dates & Times: Depart Friday, June 20, at 8 a.m. and return Saturday, June 21, at 7 p.m.
Depart From: East parking lot adjacent to Douglas Research Conservatory, Union Bay
Fee- $145, includes transportation, hotel (based on double occupancy), two lunches, all entry fees; does not
include dinner on first evening or breakfast the second day. Pre-registration required, limited to 22 persons
The garden glories of Vancouver await! We will enjoy such terrific public gardens as Van Dusen Botanical garden, UBC Botanical
Nitobe Japanese Garden Dr. Sun Yat Sen Classical Chinese Garden and the Bloedel Conservatory at Queen Elizabeth Park. We
SL the private gardens of Pam Frost and Tom Hobbs, plus Tom’s small specialty nursery. Friday evening we will stay at the down-
town Holiday Inn, and optional excursions to Chinatown or Granville Island will be offered.
Arboretum Focus Walks
Arboretum Focus Walks are designed to explore the plant collections of the Washington Park Arboretum, by focusing on specific
plant groups or investigating collections development and management. Although for other programs the University requires advance
payment and registration, for these walks, you will be required to pay at the point of departure.
Rhododendron Glen & the Stream Restoration Project
Date & Time:
Instructor:
Location:
Fee:
Wednesday, April 9, 10 a.m. to Noon
Chris Pfeiffer, Horticulturist, UW-CUH, Washington Park Arboretum (WPA)
Depart from the south patio of the Graham Visitors Center, WPA
$5 general public, $4 Arboretum Foundation members, payable at the point of departure
Magnificent Magnolias
Date & Time:
Instructor:
Location:
Fee:
Japanese Garden
Date & Time:
Instructor:
Location:
Fee:
Wednesday, May 14, 10 a.m. to Noon
Tracy Omar, Plant Registrar, UW-CUH, WPA
Depart from the south patio of the Graham Visitors Center, WPA
$5 general public, $4 Arboretum Foundation members, payable at the point of departure
Wednesday, June 11, 10 a.m. to Noon
Jan Pirzio-Birolli, Naturalist, WPA Volunteer Guide
Depart from entry to Japanese Garden
$5, including entry fee, payable at the point of departure
Guided Arboretum Hikes for Adults
Immerse yourself in azaleas, cherries, crabapples, magnolias, dogwoods, rhododendrons, and the other
vibrant colors and fragrances of spring. Guided hikes through the Arboretum led by trained Arboretum Foundation
guides areavailable with advanced registration for garden clubs, senior centers, and other groups. These 60-90
minute walks stress sensory interaction and discovery. They are available 10 a.m. to 3 p.m., every day, year-round. Fees are $10
per 15 adults, or for Arboretum Foundation Units & Study Groups, $5 per 15 adults. Reserve your guide by calling 543-8800; three
weeks advance reservation required.
Free Guided Arboretum Walks
Every Saturday at Sunday at 1 p.m., FREE public tours depart from the Graham Visitors Center in the Arboretum. Walks highlight
areas and collections of seasonal interest. Walks are not offered in December, on holidays, or on Husky home football game
Saturdays.
Tour: Gardens & Parks of South Africa
There are still a few spaces left on our exciting tour of private and public gardens and parks and preserves of South Africa from
September 19 to October 3, 1997. Among the sites to be visited in the Johannesburg/Pretoria area: Johannesburg Botanical
Gardens, Witwatersrand National Botanical Garden, Krugersdorp Game Reserve, Pretoria National Botanical Gardens, Austin Rob-
erts Bird Sanctuary, plus private gardens. Visits east of Johannesburg w/ill include: Lowveld Botanical Garden and the amazing
Kruger National Park. Sites in the Cape Town area include: Cape of Good Hope, Company Greens, Karoo National Botanical Gar-
dens, Fernkloof Nature Reserve, Harold Porter National Botanical Gardens, private gardens, wildflowers & the unique flora of Table
Mountain, and one of the most renowned Jewels in the entire garden world — Kirstenbosch Botanical Gardens. The tour will also
include visits to a number of cultural and historical places of interest.
For a brochure with complete itinerary and detailed descriptions of each site, plus costs and sign-up information, please contact
Dave Stockdale or Jean Robins at the Center for Urban Horticulture at (206) 685-8033. The sign-up deadline is July 15.
prop
shop
Each section rocuses on a different aspect of plant propagation and includes a discussion of the featured technique, including when
and with which plants it is best used, followed by a demonstration of skills, and hands-on practice by participants whenever possible.
Spring, Section A: Grafting Skills
Date & Time: Thursday, April 3, from 7 to 9 p.m.
Instructor: Gil Schieber, Horticulturist, Seattle
Location: Greenhouse adjacent to Graham Visitors Center, WPA
P®®' $16 general public, $14 Arboretum Foundation members;
pre-registration required, class size limited
Spring, Section B: Demonstration of Micropropagation Techniques
Date & Time:
Instructor:
Location:
Fee:
Thursday, June 5, from 7 to 9 p.m.; this section is a demonstration only
Dr. Martin Meyer, Professor Emeritus of Horticulture, U. of Illinois,
Visiting Professor, UW Department of Botany
Greenhouse adjacent to Graham Visitors Center, WPA
$16 general public, $14 Arboretum Foundation members; pre-registration required, class size limited
af nature crafts
This series provides hands-on opportunities to make and take home a variety of plant and plant-related projects. Planned and
instructed under the leadership of the Arboretum Foundation Natural Crafts Study Group and the Arboretum Foundation Education
Committee, these programs require advance registration through the Arboretum Foundation office by phoning 726-1954. Please do
not send registrations to the University.
Mixed Containers for Spring- Arboretum Style
Date & Time:
Location:
Fee:
Thursday, April 10, 7 to 9 p.m.
Graham Visitors Center, Washington Park Arboretum (WPA)
$20 non-members, $15 Arboretum Foundation members; pre-registration required, call 726-1954.
Hypertufa Basics
Date & Time: Saturday, May 24, 10 a.m. to Noon
Location: Graham Visitors Center, WPA
Fee: $25 non-members, $20 Arboretum Foundation members; pre-registration required, call 726-1954.
Garden Arrangements for Spring
Date & Time: Saturday, June 28, 10 a.m. to Noon
Location: Graham Visitors Center, WPA
Fee: $15 non-members, $10 Arboretum Foundation members; pre-registration required, call 726-1954.
arboretum plant study
program
Each section of this year-round study program focuses on a different set of trees, shrubs, vines, and ground covers in the Washing-
ton Park Arboretum, and includes field work on plant identification, plus discussions on plant selection, placement, and function
within the urban environment.
In each section you will study at least 15 plants not covered in any other section during the same calendar year; over 300 plants
will be covered annually. Plants will be studied in the season of their most distinguishing characteristics (flowers, fruits, etc.).
Spring, Section A: Saturday, April 5, from 9 a.m. to Noon
instructor:
Location:
Fee:
Randall Hitchin, M.S. Student, UW Center for Urban Horticulture (UW-CUH)
Washington Park Arboretum (departure location will be indicated in course confirmation letter)
$17 general public, $15 Arboretum Foundation members; pre-registration required, class size limited
Spring, Section B: Saturday, April 19, from 9 a.m. to Noon
(roetor:
Instructor: Cynthia Gilbert, Ph.D. Student, UW-CUH
Location: Washington Park Arboretum (departure location will be indicated in course confirmation letter)
, Fee: $17 general public, $15 Arboretum Foundation members; pre-registration required, class size limited
Sptui^y Section C:saturday, IVlayl?, from9a.m. toNoon
instructor: Dr. Clement Hamilton, Director, UW-CUH, Associate Professor of Plant Taxonomy
Location: Washington Park Arboretum (departure location will be indicated in course confirmation letter)
Fee: $17 general public, $15 Arboretum Foundation members; pre-registration required, class size limited
Spring,. Section D: Saturday, June 7, from 9 a.m. to Noon
Tracy Omar, Plant Registrar, UW-CUH, Washington Park Arboretum
Washington Park Arboretum (departure location will be indicated in course confirmation letter)
$17 general public, $15 Arboretum Foundation members; pre-registration required, cldss size limited
I Saturday, June 21, from 9 a.m. to Noon
Scott Conner, Consultant Horticulturist, Conner Enterprises
Washington Park Arboretum (departure location will be indicated in course confirmation letter)
$^7 general public, $15 Arboretum Foundation members; pre-registration required, class size limited
^.InstWIctor:
47th Annual Spring Plant Sale
AF Members’ pre-sale, Saturday, April 26
Public Sale, Sunday, April 27, 10 a.m. to 5 p.m.
Location TO BE ANNOUNCED
Choose from a wide selection of unusual trees,
shrubs, and herbaceous plants, many of which
cannot be found anywhere else. Call 325-4510 for
more information.
Symphony Benefit Concert
May 4, 3 p.m., $15, Seattle Center Opera House
The Seattle Symphony will be presenting this
arboretum foundation
benefit All-Community Concert sponsored by U.S.
Bank. 100% of all proceeds from ticket sales/
donations specifying the Arboretum Foundation as
the beneficiary go to the Foundation. For tickets,
call 443-4747.
Pat Calvert Plant Sales
A wide variety of plants are always available for
purchase from the Pat Calvert Greenhouse in the
Arboretum every Tuesday from 10 a.m. to Noon,
and the first Saturday of the month, 10 a.m. to 2
p.m. Arboretum Foundation Volunteers grow plants
from seeds or cuttings from plants in the collec-
tions of the Arboretum.
news
Plant Donations Sales
The Plant Donations Department opened for the
season on March 20. Members sell favorites from
their own gardens at great prices. Current hours
are Wednesdays, 10 a.m. to Noon (and adding
Saturdays, 10 a.m. to Noon, starting in June).
Member Discounts
Arboretum Foundation members enjoy a 10%
discount in the Arboretum Gift Shop, and discounts
on selected UW-CUH programs, plus receive special
Invitations to members-only events. Call 325-4510
to Join!
northwest horticultural society news
Lectures, unless noted, are $5 for NHS members, students
& seniors, $10 for non-members; call NHS at 527-1794.
Ann Lovejoy Lecture
Author Ann Lovejoy presents “Artful Gardens and
Garden Art”, April 15, 7 pm, NHS Hall, CUH.
Urban Garden Symposium
Speakers: Dan Hinkley, Charles Price, Glenn Withey,
Thomas Hobbs, Jock Wick, lain Robertson. April
24, 8:30 a.m. to 4:30 p.m., NHS Hall; $75 NHS
members/students/seniors; $90 non-members.
Garden Party & Auction
May 4, 6 to 8 p.m., NHS Hall, CUH. Second
annual Auction to benefit the NHS Endowment
Fund for the Miller Horticultural Library.
Richard Hartlage Lecture
Miller Botanical Garden Director Richard Hartlage
lectures on “The American Perennial Border" at the
NHS Annual Meeting on May 20, 7 p.m., NHS Hall.
Fern Festival
NHS & the Hardy Fern Foundation present their
annual Fern Festival on June 6-7, CUH. Friday
lecture on New Zealand ferns by Sue Olson, fern
sale Friday from 1 to 4 p.m., Saturday, from 10
a.m. to 2 p.m. (Note the date change from earlier
listings.) Call for details.
Timothy Walker Lecture
Oxford Botanical Garden Director Timothy Walker
presents “Euphorbias; Probably the Best Plants in
the World”, June 27, 7 p.m., NHS Hall.
Mail payment and registration to:
Urban Horticulture Courses
University of Washington
Box 354115
Seattle, Washington 98195-4115
Or you may register in person at the Union Bay campus,
3501 NE 41st St, M-F, 8 a.m. to 5 p.m.
Please make checks payable to the University of
Washington. No bank cards.
Registrations will be filled in the order received.
Enrollment is limited and classes fill rapidly, so register
early. A portion of your fee may cover refreshments and
speaker expenses.
Refunds: Requests must be in writing or in person.
Requests received 7 days or less from first class
meeting have a $5.00 handling fee deducted. No
refunds can be given after the first class meeting.
If a program is cancelled for any reason a full refund will
be given to all enrollees. Refunds may require four
weeks for processing.
Returned Checks: An $18.00 service fee will be
charged for returned checks.
Special Needs: To request disability accommodation,
please contact the Office of the ADA Coordinator at
least ten days in advance of an event; (206) 543-6450
(voice); (206) 543-6452 (TDD); (206) 685-3885 (FAX);
access@u.washington.edu (Email).
Class Locations and Parking: Program locations are
listed with each program description. The Graham
Visitors Center at Washington Park Arboretum is located
at 2300 Arboretum Drive East; free parking is located
adjacent to the building. Douglas Classroom, NHS Hall
and the other meeting facilities at Union Bay are
located at 3501 NE 41st Street; prepaid parking is
located adjacent to the buildings.
(cut here)
registration form
at 1 «
program fee members # spaces total fee program fee members # spaces total fee
Special Events
Using Native Plants to Attract Wildlife
$30
Creating a Beautiful Water-Wise Garden
free
Your Automatic Irrigation System
free
Drip Irrigation Made Easy
free
Gardening & Horticulture Programs
Botanical Illustration
$120
Basics of Rose Care
$8
$7
Soil Science for Gardeners
$27
Contained Gardens
$8
$7
Growing Plants from Miller Garden
$42
Garden Pest ID & Management
$24
WSU Practical Gardening Lectures:
Mulch Madness
$5
WSU Practical Gardening Lectures:
Trouble-free Plants
$5
WSU Practical Gardening Lectures:
Small Water Features
$5
Design Studio
Focus on Mixed Perennial Borders
$25
i
Focus on Edible Landscapes
$25
Focus on Architectural Elements
$25
Construction Demonstrations
Concrete Garden Ponds
$23
$20
Walks & Tours
Tour: Elisabeth C. Miller Botanical Garden
Section A (April 17, 9 a.m.)
$17
Section B (April 17, 2 p.m.)
$17
Section C (April 18, 9 a.m.)
$17
Section D (April 18, 2 p.m.)
$17
Tour: Gardens of Portland
$135
Tour: Gardens of Vancouver
$175
Prop Shop
Section A: Grafting Skills
$16
$14
Section B: Micropropagation
$16
$14
—
Arboretum Plant Study Program
'
y
Section A (April 5)
$17
$15
Section B (April 19)
$17
$15
Section C (May 17)
$17
$15
Section D (June 7)
' $17
$15
Section E (June 21)
1 $17
$15
Check enclosed for:
(Please make check payable to University of Washington)
Number of people requiring vegetarian meal (where applicable).
Name
Address
City
State
Zip
Phone - (day)
(evening)
Fax
Conservation Grant: The Arboretum re-
ceived an Institute of Museum Services
Conservation Grant for the proposal entitled
"A Color Stereo Aerial Photograph Survey of
the Native Collections" in order to survey,
map, and evaluate major native trees and
naturalized vegetation throughout the
Arboretum in relationship to the health and
display of the accessioned collections, as
well as in relationship to aspects of the
new Master Plan. A review of invasive
species is included as part of this study. A
1936 vegetation map of the Arboretum
completed by the Olmsted firm will be
useful in studying how the naturalized
vegetation has changed over the years. This
$25,000 award was one of only six made to
public gardens this past year. Key Arbore-
tum staff working on its implementation are
Chris Pfeiffer and Lou Stubecki. Graduate
student Randall Hitchin is also working on
the project and will apply information gained
towards his master’s thesis.
Cherry Evaluation Project: An exhaustive
study of the Japanese flowering cherries
and their characteristics was recently
completed by CUH Ph.D. student Cynthia
Gilbert. Cynthia gathered information from
as many sources as possible, and has since
made recommendations for a demonstration
of 12 to 15 cultivars which will be planted
out in the old nursery area of the Arbore-
tum. We will be evaluating those trees for
flowering characteristics and insect and
disease resistance. This information will be
very useful as we look towards the future
renovation of Azalea Way and our own
Japanese cherry collection.
Winter Storm Damage: The early record
snowfall of last November caused severe
limb damage on many trees in the Arbore-
tum. Hard hit were deciduous trees which
had not yet lost their leaves, such as the
sweet gums, stripe-barked maples, elms,
and birches. Among the evergreen trees
damaged, evergreen magnolias were the
most heavily impacted. Significant trees
lost included 40 year old specimens of
Nothofagus dombeyi, Alnus japonica, and two
Prunus X yedoensis. The severe snow blast
just after Christmas added many more
broken limbs to the total. As a group, the
Douglas-firs, pines, junipers, and evergreen
oaks suffered the most damage. The subse-
quent heavy rains after the snow caused
even more damage from fallen trees,
clogged drainage lines, flooding, wash-outs,
and overall soggy conditions preventing
access to many areas. The drain under the
Wilcox bridge clogged, closing Lake Wash-
ington Boulevard. Deep water stood in the
Sorbus collection. The east arbor of the
Graham Visitors Center buckled from the
snow load, and the snow leveled two poly
houses in the plant production area at
Union Bay. The gutter system was damaged
on the Northwest Horticultural Society Hall
at Union Bay and had to be replaced. Con-
sidering the potential for disaster, it was
encouraging that so few plants were lost or
buildings or structures severely impacted.
The large tree management program in the
Arboretum has been successful in reducing
the large tree failures during storm events.
The work load required to clean up has set
staff behind in scheduled dormant season
plant care operations.
Gifts to Library: The Miller Library recently
received a generous gift from Otto Rombots
to buy several garden design software
packages for its new multimedia computer
work station. Another generous gift was
funding from Unit 2 of the Lake Washington
Garden Club to purchase several new books
and videos. Also, the library staff would like
to thank the Northwest Horticultural Society,
especially Judith Williams, for their gener-
ous responses to the recent holiday year-
end book-fund appeal.
Rhododendron Hybridizers Garden: After
numerous studies and much discussion with
the Rhododendron Hybridizers Society, a list
of nearly 100 cultivars of rhododendrons
hybridized by Puget Sound enthusiasts has
been developed. Tracy Omar has been
working with members of the Society to
locate large specimens of as many of these
plants as possible to be planted in the
Arboretum.
Master Plan: The Portico group completed
the final physical design for the Arboretum
Master Plan in January. Work is now continu-
ing on completing the Environmental Impact
Statement. The University Board of Regents
and Seattle City Council will need to approve
the final product later this spring.
Miller Library To Be Open Saturdays:
Thanks to funding from the Miller Charitable
Foundation, the Miller Library will be open
from 9 a.m. to 3 p.m. every Saturday from
March through mid-June, and again from
September through December. Come visit!
Earthwork Northwest Comes to the Arbore-
tum: The Arboretum will serve as one of the
project sites for the Student Conservation
Association’s annual hands-on community
volunteer day celebrating Earth Day on
Saturday, April 19. Volunteers will help us
battle invasive brush, brambles, and ivy, as
well as weeding and mulching plant beds.
This will serve as a huge contribution to the
maintenance needs of the Arboretum. For
more information about this project, call
Chris Pfeiffer at 328-4182 or Lisa Steel at
SCA at 324-4649.
volunteer news & opportunities
Spring Volunteer Dessert Buffet: CUH will host
their annual Volunteer Recognition Dessert Buffet
on March 27. University and Arboretum Foundation
volunteers are all invited to attend. Guest speak-
ers that evening will be Steve Lorton presenting
"My Life in Other People’s Gardens”, and UW
President Richard McCormick, who will be on hand
to present our first ever Brian Mulligan Volunteer
Awards and express his appreciation to all our
volunteers on behalf of the University. See you
there!
Library Volunteer Needed for New Saturday Hours:
The Miller Horticultural Library is going to be open
on Saturdays, and we need a volunteer to help staff
with shelving, clerical work, and interacting with the
public. Call the library at 543-0415 for more
information.
Arboretum Maintenance Volunteers Needed:
“Tuesdays in the Garden” work parties need your
help. These are held 12:30 to 3:30 p.m. the
second Tuesday of each month. Upcoming
projects include Azalea Way on April 8, Loderi
Valley on May 13, and the Sorbus collection on
June 10. Call Chris Pfeiffer at 328-4182 to sign
up.
Front Desk Volunteer at WPA Visitors Center
Needed: If you enjoy talking with people, sharing
your enthusiasm about the Arboretum, and have at
least one day per month available, then you could
be our newest front desk receptionist at the WPA
Graham Visitors Center. For more information,
contact Stacey or Cynthia at 543-8800, between 10
a.m. and 4 p.m., Monday-Friday.
center for urban horticulture
09-9615-123
spring 1997
University of Washington
College of Forest Resources
Center for Urban Horticulture
Box 354115
Seattle, WA 98195-4115
Nonprofit org.
U.S. Postage
PAID
Seattle, Wash.
Permit No. 62
University of Washinaton 4 1997
CENTER FOR URBAN HORTICULTURE
ELISABETH C. MILLER LIBRARY
BOX 354115
Seattle, Washington 98195-4115
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