Washington Park Arboretum
Free arboretum grounds with living tree collections and published accessible routes; visitor-center and Japanese Garden access have separate conditions.
About Washington Park Arboretum
Washington Park Arboretum offers a way to get to know Seattle through its living tree and plant collections. The visitor-information address is 2300 Arboretum Drive East, with the Graham Visitors Center providing an orientation point. Free access to the arboretum grounds does not include the separately ticketed Seattle Japanese Garden, which has its own opening calendar and rules.
The operator publishes grounds hours of dawn–8 p.m. daily. The Graham Visitors Center normally opens Tuesday–Sunday, 10 a.m.–4 p.m.; limited staffing and holidays can change access. Its gift shop relies on volunteers, so the building schedule is not a guarantee that the shop will be staffed throughout it. Visitor information is available at 206-543-8800 or uwbg@uw.edu.
The accessibility guide identifies three suggested loops, including Azalea Way and the Arboretum Loop, the Pinetum and conifer collections, and Pacific Connections. Their surfaces include pavement and compacted gravel; weather can alter conditions. Accessible parking is available at the visitor center. Review the route description against your own mobility needs rather than assuming all paths have the same surface or slope. Dogs must remain leashed in the arboretum; the Japanese Garden admits service animals only.
The official website describes a new nonprofit, Seattle Botanic Gardens, first announced in January 2026, being developed around the arboretum and associated gardens. This profile retains the published UW Botanic Gardens contacts and identifies its logo and Facebook account as organizational, not park-specific. An institutional transition does not establish changed visitor hours without a separate operator notice.
Google review excerpts: Three visible Google excerpts appreciate trees, varied plant collections or the garden setting. The comments are partly truncated and reflect personal visits rather than verified current crowd levels or guaranteed flowering.
Sources: Visit | University of Washington Botanic Gardens · Accessibility | University of Washington Botanic Gardens · Graham Visitors Center | University of Washington Botanic Gardens · Seattle Botanic Gardens | University of Washington Botanic Gardens · Google Maps: Washington Park Arboretum