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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Woodland Meadow Project: Public Meeting Dec 7

Woodland Meadow Project: Public Meeting Dec 7

The current Crabapple Meadow is usable in summer but waterlogged for much of the year.The Woodland Meadow Project reimagines the current Crabapple Meadow (site of the Arboretum's original field nursery) as a year-round gathering and celebration space. While the...

Jim Olsen: Our Volunteer of the Year!

Jim Olsen: Our Volunteer of the Year!

Jim Olsen receiving his award the greenhouse's monthly potluck on Halloween.Congratulations to Jim Olsen, winner of our 2023 Volunteer of the Year Award! Our volunteer programs manager, Lily King, presented the award to Jim at the Pat Calvert Greenhouse’s monthly pot...

Public Meeting for Japanese Garden Master Plan Project: November 16

Public Meeting for Japanese Garden Master Plan Project: November 16

In partnership with Seattle Parks and Recreation, the Arboretum Foundation is developing a plan to reconstruct the stone wall at the north end of the Seattle Japanese Garden pond, modify the pathways in this area to improve accessibility, and add a new garden...

Notes on the Arboretum Woodland Garden

Notes on the Arboretum Woodland Garden

With its dramatic topograpy, water features, and multilayered tree canopy, the Woodland Garden is one of the Arboretum's most iconic displays. It's also a huge draw in autumn, when foliage enthusiasts come from all around the region to admire the fall color,...

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Read about our 2022–23 fiscal year accomplishments.

UW Botanic Gardens
Seattle Parks and Recreation.

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