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UW Botanic Gardens Newsletter, Vol 13 Issue 4, April 2017

April E-Flora: Earth Month Edition

Upcoming Events

4/6 First Thursday Tram Tour
4/6 First Thursday Center for Urban Horticulture Tour
4/7 Art Exhibit: PNW Botanical Artists


Garden Lovers' Party, Book Auction and Sale
4/8 Garden Lovers' Book Sale
4/8 Arboretum Foundation Early Bloomer Plant Sale
4/8 Free Family Weekend Walks
4/9 Free Weekend Walks
4/9 Hardy Plant Society of Washington Spring Plant Sale
4/13 - 4/15 Family Nature Class: Decomposers in the Dirt
4/15 Free Family Weekend Walks
4/16 Free Weekend Walks
4/17 Native Plant 101: Identification and Gardening
A Closer Look: Magnolia Tour
4/20 - 4/22
Family Nature Class: Our Planet Earth
Earth Day Service at Washington Park Arboretum
4/22 Earth Day Story Time
4/22 Free Family Weekend Walks
4/23 Free Weekend Walks
Botanical Sketching In Ink and Watercolor
4/26 Green Lessons from the Past, Green Action for the Future
4/27-29 Family Nature Class: Tree Appreciation
4/29 Free Family Weekend Walks
4/30 Free Weekend Walks
5/4-5/6 Family Nature Class: What Makes A Bird A Bird?
5/4 First Thursday Tram Tour
5/4 First Thursday Center for Urban Horticulture Tour
5/5-6 King County Master Gardener Plant Sale
5/6 Free Family Weekend Walks
5/7 Free Weekend Walks
5/10 Applying Ecological Concepts to Project Design
See all events »

Free Public Tours at the Washington Park Arboretum 

Rhododendron botanical art

Our Free Public Tours include First Thursday Tram Tours and Free Weekend Walks. Weekend walks offer programming for families with children on Saturdays and adult audiences on Sundays.



On Exhibit in the Miller Library

PNW Botanical Artists

The Pacific Northwest Botanical Artists will have an exhibit and sale of prints and cards starting this Friday at the Book Sale party and extending through May 6.



New Books in the Miller Library

Birds of the PNW book



Garden Lovers' Party, Book Auction and Sale This Week!

Miller Library Book Sale

Join us at the Center for Urban Horticulture this weekend to support the Elisabeth C. Miller Library at the 12th annual Garden Lovers' book sale. Purchase tickets for the Friday Evening Party and enjoy wine and light refreshments while browsing a fantastic selection of used gardening books. Author Nita-Jo Rountree will be selling & signing her new book Growing roses in the Pacific Northwest. On Saturday, the sale is free for everyone and runs 9am-3pm.


Earth Day Service at the Washington Park Arboretum

Earth Day work party

Join the Student Conservation Association for Earth Day to give back to Seattle’s public lands and help restore the Washington Park Arboretum. Earth Day is one of our largest volunteer events of the year! Can't make it to the day of service? Join us to celebrate Mother Earth at nature-themed story time, family nature class, or adult classes.


Applying Ecological Concepts to Project Design

Union Bay Natural Area_photo by Larry Howard

This May, our Ecological Restoration Symposium focuses on Applying Ecological Concepts to Project Design. This symposium kicks off a new series of professional education for those working in the restoration field. Additional courses will be offered starting in the fall.


Spring in the Arboretum

Azalea Way by Niall Dunne

Spring is when the Arboretum shines the most. As the weather warms up and the days brighten, the progression of blooms and growth reveal something new each day. Curator of Living Collections, Ray Larson, offers suggestions for favorite highlights of the season on our blog. Join Ray for a tour of the Magnolia collection on April 18.

April 2017 Plant Profile: Corylopsis pauciflora (buttercup winter hazel)

Corylopsis pauciflora April 2017 plant profile

Corylopsis pauciflora is a dense, multistemmed shrub that requires little pruning. This is one of the most charming plants in the witch hazel family, with unique and colorful leaves, attractive and lightly fragrant flowers, fall color and being a good size for smaller gardens. The nodding flowers, found all along each branch, produce an overall effect is very showy in bloom. Flowers can be still be found coming into bloom until May, and in some years it can rebloom in September.

Read more about this month's featured plant.

Common name: Buttercup winter hazel

Family: Hamamelidaceae

Location: Buttercup winter hazel can be viewed at both UW Botanic Gardens locations: the Center for Urban Horticulture and the Washington Park Arboretum. At the Center there are four plants. Three (4-05-A, B & C), are espaliered along the west wall of the Northwest Horticultural Society Hall. One young plant (197-15-A) is open grown in the bed north of the Fragrance Garden. At the Arboretum there are five plants. The oldest (2413-40-A) in the old witch hazel family section in grid 6-4E, at the west side of the grove of another witch hazel family member: Sycopsis sinensis (fig hazel). Three plants (636-62-A) are in the Japanese Garden. A young plant (197-15-B) is in the Woodland Garden in grid 31-3E.

Origin: Corylopsis pauciflora is native to Japan and Taiwan. It was introduced to western horticulture by the Veitch & Sons Nursery of England, from Japan. Most plants in cultivation are thought to be from Japanese plants.

Height and spread: Buttercup winter hazel will reach 4-6’ high and wide in time. It performs well in part shade and in woodland settings. However, in the Pacific Northwest it will tolerate full sun as long as it is protected from freezing winds and reflected heat.

Hardiness: Cold hardy to USDA Zone 6


Glimpse into the past - Honoring the Career of Valerie Easton

Valerie Easton and Dorothy MacArthur

Valerie Easton and Dorothy MacArthur, Miller Library volunteer, 1986-7

It is extremely appropriate that we acknowledge the legacy of Valerie Easton, as one of the premier horticultural writers of the Northwest. But most importantly, she has held high the banner of women involved in horticulture as a public professional leader in this gardening arena for over 30 years. Read the reflections of Director Emeritus John Wott in this month's Glimpse into the past.



The 9th annual Urban Forest Symposium will highlight Equity and the Urban Forest on May 23. Learn more.

Our beautiful cherry trees are in full bloom! Read about how our horticulture staff works to keep the collections healthy.

Last month, Herbarium manager Eve Rickenbaker led a gorgeous garden tour to Savannah and Charleston. Her recent blog post shares pictures and stories from the trip.

The programs of UW Botanic Gardens are supported in large part by private donations. Please consider supporting our work with a gift.

Give a gift today!


E-Flora is a regular online newsletter of the University of Washington Botanic Gardens
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