Join & Support

Members and donors make our mission possible

A unique public/private partnership between the City of Seattle, the University of Washington, and the Arboretum Foundation, Washington Park Arboretum is largely self-financed. The Foundation’s role is to raise funds to protect and enhance this spectacular urban ecosystem and world-class plant collection. Please join the Arboretum’s extended family and help protect this treasured regional and community asset.

By becoming a member of the Arboretum Foundation, you help us promote, protect, and enhance the Washington Park Arboretum for current and future generations.

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Support This Special Place of Solace! 


Support the Arboretum through an individual gift, stock transfer, bequest, commemorative tree, or more.

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Enjoy great benefits while helping to steward the Arboretum and support its environmental educational programs.

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Donate the amount you want to, when you want, whether it’s one-time or recurring donation.

“Simply stated, the Arboretum adds to my quality of life. Since discovering a favorite route a year ago, I visit at least once a week. Thank you to every person who works with care to keep this unique park healthy, and accessible to all, but still with enough unpaved paths and trails that one can feel almost in the wilderness, minutes from its urban setting.”