Arboretum Earth Day Event Promotes “Powerful Pollinators”
We had a great turn out for our Earth Day at the Arboretum event on Saturday, April 19. More than 100 volunteers worked with the hort crew on six...
News Articles
Corporate Volunteers Return in Force to Help Restore the Arboretum
Rockwell Automation mulched the Lilac Collection in April with UW gardener Roy Farrow (right). After a year-long pandemic-related hiatus, the...
Group and Corporate Volunteers Building a Legacy at the Arboretum
Since its beginnings in the 1930s, the Washington Park Arboretum has relied heavily on the generosity and hard work of volunteers—from the...
A Wonderful Earth Day Event at the Arboretum!
More than 140 volunteers of all ages attended our Earth Day work-service event at the Arboretum on Saturday, April 20. They worked with UW and City...
Unit 26 Gift Helps Fund New Planting Bed on Azalea Way
Our volunteer units play an integral role at the Arboretum—raising vital funds, participating in Foundation-sponsored events, leading tours at the...
News Articles
Black Walnut Tree in Arboretum Tests Positive for Thousand Cankers Disease
Cankers and beetle feeding holes on the inner bark of a downed walnut branch. (Photo courtesy: Elizabeth Bush, Virginia Polytechnic Institute and State University, bugwood.org)FIRST DOCUMENTED CASE IN WESTERN WASHINGTON! This summer, Seattle Botanic Gardens...
Hidden Treasure of the Arboretum: Witch-Alder
Fall foliage close-up of a witch-alder in the Arboretum's Woodland Garden. (Photo by Niall Dunne)BY PHIL WOOD As a retired garden designer, I am always on the lookout for plants that offer mul-tiple seasons of interest. Witch-alders (Fothergilla species and hybrids)...
Volunteers Help Host First Seattle Botanic Gardens’ Plant Sale
Volunteers helping shoppers at check-out in the Big Greenhouse. (Photo by Polly Teeter)BY ALICIA HAMILTON Our annual Fall Plant Sale took place at the Graham Visitors Center in the Arboretum last Saturday, September 19. Though it happened on a single day, the sale was...
Bulletin Stories
Hidden Treasure of the Arboretum: Witch-Alder
Fall foliage close-up of a witch-alder in the Arboretum's Woodland Garden. (Photo by Niall Dunne)BY PHIL WOOD As a retired garden designer, I am always on the lookout for plants that offer mul-tiple seasons of interest. Witch-alders (Fothergilla species and hybrids)...
Symbiotic Marvels: Get to Know the Small but Mighty Lichens of the Arboretum
Figure 1: Lichens on the Ceanothus in the Graham Visitors Center parking lot, including Ramalina farinacea, Usnea species (fruticose), Evernia prunastri and Physcia tenella (foliose).TEXT BY KATHERINE GLEW | Photos by Richard Droker Hidden beneath the leaves and...
Conservation Corner: Large-Winged Wingnut
The winged fruits of Pterocarya macroptera maturing in summer. (Photo by Niall Dunne)BY CHRISTINA PFEIFFER Quietly tucked away in the Arboretum’s old field nursery, on the south side of Crabapple Meadow, a stately specimen of Pterocarya macroptera holds court amid a...
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