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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$1.32M

The amount we gave our partners in 2021-22 to support the Arboretum.

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6,000+

The number of hours our volunteers contributed in 2021.

News Articles

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Construction Phase of Rhody Glen Stream Restoration Nears Completion

Construction Phase of Rhody Glen Stream Restoration Nears Completion

ABOVE: Workers installing new stepping stones across the stream in early September. (Photo courtesy UW Botanic Gardens) The major construction component of the Rhododendron Glen stream restoration project is almost complete. The contractors, Forma and Terra Dynamics,...

Leaf Skeletons and Shadows

Leaf Skeletons and Shadows

PHOTO: Student on an Arboretum school field trip, with a skeletonized magnolia leaf (courtesy UW Botanic Gardens). The season of the dead is upon us, and in the latest issue of the Arboretum Bulletin, the Miller Library's Rebecca Alexander answers a ghoulish...

Arboretum Celebrates Return of the Tsutakawa Memorial Gates

Arboretum Celebrates Return of the Tsutakawa Memorial Gates

The newly restored Tsutakawa Memorial Gates at the north end of Azalea Way.Our public celebration for the restoration of the Tsutakawa Memorial Gates on September 14 was a truly special occasion! A large crowd of visitors attended the late-afternoon event and enjoyed...

Olmsted Design Principles and the New Zealand Forest

Olmsted Design Principles and the New Zealand Forest

PHOTO: The Olmsted-era Lookout Gazebo in the Arboretum's New Zealand Forest. This year marks the 200th anniversary of the birth of Frederick Law Olmsted. Numerous celebrations are taking place around the country to mark the bicentennial of this iconic landscape...

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Support This Special Place of Solace! 

Read about our 2021–22 fiscal year accomplishments.

UW Botanic Gardens
Seattle Parks and Recreation.

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