Foundation Marks Final Annual Meeting
This year, the Arboretum Foundation is joining with UW Botanic Gardens to form a new non-profit entity, Seattle Botanic Gardens. As we embark on...
News Articles
Grow with Us: Volunteer Opportunities Now Open for 2026 Season!
BY ALICIA HAMILTON We’re happy to share that volunteer recruitment at the Arboretum Foundation is open for the 2026 season. Over the past few weeks,...
Volunteers Needed for Restoration at Union Bay Natural Area
PHOTO: UW Botanic Gardens horticulturist Heather Ferguson (center) working with volunteers to remove invasive blackberry from the Union Bay Natural...
Arboretum Creek Project Receives $1.1 Million in County and State Funding
Last month, the King County Flood Control District approved a grant of $889,000 to Seattle Parks and Recreation for the construction phase of the...
Celebrating the Collective Impact of Our Volunteers
ABOVE: Volunteers enjoying lunch on the Visitors Center patio. On the afternoon of October 3, more than 100 volunteers attended the UW Botanic...
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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