Protecting & Enhancing a Northwest Treasure

Members, donors, visitors, and volunteers have helped make the Washington Park Arboretum a Northwest treasure since its founding in 1934. The Arboretum Foundation invites you to explore the Arboretum’s 230 acres and join in our mission to protect and enhance this spectacular urban green space and world-class plant collection.

Learn about our mission and vision

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40,000

The number of plants being cared for by Arboretum arborists and gardeners.

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7,000

Number of children who participate in  the environmental education program each year.

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$620K

The amount we gave our partners in 2020 to support the Arboretum.

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13,892

The number of hours our volunteers contributed in 2019.

News Articles

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Earth Day Volunteers Helped Restore the Arboretum

Earth Day Volunteers Helped Restore the Arboretum

A total of 60 volunteers participated in our annual Earth Day at the Arboretum event on April 24. Co-hosted with UW Botanic Gardens and the Student Conservation Association, the work-service day was smaller than usual, due to Covid restrictions, but the volunteers...

COVID-19 Response: Arboretum Visitors Update

COVID-19 Response: Arboretum Visitors Update

Visitors Center & Arboretum Shop Now Open! Following a year of pandemic-related closure, the Graham Visitors Center and Arboretum Gift Shop have reopened in a limited capacity. Opening hours for the lobby are Wednesday through Sunday, 10 a.m. to 3 p.m. The shop...

Online Wine Auction Taking Place April 19 to 22!

Online Wine Auction Taking Place April 19 to 22!

As we communicated in our gala-related emails, we postponed the wine component of Spring Forward! due to a recent update in state licensing rules. The wine auction will now happen as a separate, mini online event from April 19 to 22. It'll feature 13 exciting wine...

Foundation Receives Generous Bequest from Longtime Volunteer

Foundation Receives Generous Bequest from Longtime Volunteer

The Arboretum Foundation has received a very generous bequest of over $300,000 from the estate of Barbara Bonjour. One of our hardest working and most cherished volunteers, Barbara passed away in April of last year.  You can read her obituary in The Seattle Times. A...

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Support This Special Place of Solace! 

Read about our 2019–20 fiscal year accomplishments. 

UW Botanic Gardens
Seattle Parks and Recreation.

There are many ways to support our work. Choose one that’s right for you.