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

icon of trees

40,000

The number of plants being cared for by Arboretum arborists and gardeners.

icon of a child

7,000

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

hands and heart icon

$620K

The amount we gave our partners in 2020 to support the Arboretum.

volunteer hours icon

13,892

The number of hours our volunteers contributed in 2019.

News Articles

See all news articles

Online Arboretum Shop Reopens

Online Arboretum Shop Reopens

In early December 2020, we created a temporary online Arboretum Gift Shop filled with nature-themed treasures from our on-site store. Designed for the holiday season, it remained opened until December 21 and netted more than $6,500 for the Arboretum. Thanks to...

Tried and True Shrubs for the Northwest Garden

Tried and True Shrubs for the Northwest Garden

We know that fall is the best time to plant shrubs in our region. But what are some of the more beautiful, useful, and easy-care varieties to grow? In the latest issue of the Arboretum Bulletin, garden writer Barbara Ashmun profiles a dozen of her favorite shrubs...

Composting Restroom Opens in the Arb

Composting Restroom Opens in the Arb

In late November, the Arboretum opened a new composting restroom in the bus-turnaround area of the Pacific Connections Garden. Solar-powered, ADA accessible, and odorfree, it is first restroom of its kind in a Seattle city park. The unit will alleviate the lack of...

COVID-19 Response: Arboretum Visitors Update

COVID-19 Response: Arboretum Visitors Update

The Arboretum is a treasured place of sanctuary and respite, even more so during such stressful times. While the Graham Visitors Center is currently closed and our normal volunteer programs and events are suspended, the Arboretum grounds remain open to the public. To...

Robin in Tree

FALL FUND DRIVE

Support This Special Place of Solace! 

Read about our 2019–20 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.