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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5,500

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

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$1.17

The amount we gave our partners in 2024–25 to support the Arboretum.

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7,000+

The number of hours our volunteers contributed in 2024–25.

News Articles

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Sargent’s Cherry: Stunning in Fall and Spring

Sargent’s Cherry: Stunning in Fall and Spring

Fall color on a Sargent's cherry at the north end of Azalea Way. (Photo by Niall Dunne)BY PHIL WOOD Azalea Way is famed for the wonderful spring floral display of its cherry trees, many of which date back to the early, formative years of Washington Park Arboretum....

Celebrating the Collective Impact of Our Volunteers

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 Gardens and Arboretum Foundation's joint annual Volunteer Appreciation Party, held at the Graham Visitors Center in the...

How Botanic Gardens Can Support the Urban Forest

How Botanic Gardens Can Support the Urban Forest

UW Botanic Gardens staffer collecting data on the health of street trees planted through the Trees for Neighborhoods program.BY OLIVIA PRICE & EMMA THORDSEN Across the country, botanic gardens play a vital role in inspiring the public to care for urban forests....

Robin in Tree

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Support This Special Place of Solace! 

Read about our 2024–25 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.