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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Quest for Gold: Fall Color in Larches

Quest for Gold: Fall Color in Larches

Broadleaf deciduous trees such as maples and sourwoods aren't the only stars of the fall foliage season. Deciduous conifers such as larches and dawn redwoods also dazzle with colors ranging from bright yellow to orange to ruddy brown. Depending on the weather, peak...

Corporate Volunteers Return in Force to Help Restore the Arboretum

Corporate Volunteers Return in Force to Help Restore the Arboretum

Rockwell Automation mulched the Lilac Collection in April with UW gardener Roy Farrow (right).After a year-long pandemic-related hiatus, the Foundation's Corporate and Group Service Program is back in full swing. So far in 2021, eight local companies have sent...

Foundation Receives Generous Bequest

Foundation Receives Generous Bequest

The Arboretum Foundation recently received a bequest of more than $110,000 from the estate of Alec Bayless. A civic activist, lawyer, grape grower, and—with his wife, Ruthanna—world-traveler who lived on Mercer Island, Alec was involved at the Arboretum in the 1980s...

15 Pacific Connections Plants for Your Garden!

15 Pacific Connections Plants for Your Garden!

Looking to add some pizzazz to your home garden? In the latest issue of the Arboretum Bulletin, landscape designer Janine Anderson profiles 15 beautiful shrubs and trees from the Arboretum's iconic Pacific Connections Garden that would look fabulous in your own...

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Support This Special Place of Solace! 

Read about our 2020–21 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.