19 gardens in Washington checked against official websites: 8 botanical gardens, 8 display gardens, 6 arboretums. Most are listed in or near Seattle, Bellevue, Bainbridge Island. 8 list free general entry and 6 charge admission; the rest are unrecorded or vary.Gardens near Seattle
Admission and hours checked September 28, 2026. Prices may change.
A 53-acre city garden of planted beds, restored woodland and wetlands. Open every day from dawn to dusk, free to enter, with free parking except at major events.
140-acre reserve on Bainbridge Island with curated gardens and forest trails. Timed tickets are recommended and it is closed Mondays.
Two-acre county demonstration garden on a former landfill with sedum and peony varieties, native plantings, a composting demonstration area, gazebo and picnic area. No pets.
Waterfront gardens with a bonsai collection, ponds, waterfalls and sculpture on Puget Sound. Adult admission is $10.
Garden in Kingston owned by the Port Gamble S’Klallam Tribe, with six component gardens and a ticket office and plant sales. Hours change by season.
An 11-acre public garden in SeaTac with heritage gardens and plant collections near the airport. Entry is free, with free parking, from dawn to dusk daily.
Historic site in Woodland, Washington with lilac and country gardens. The farmhouse and museum open only on Lilac Days and special days; the gardens close on holidays.
65-acre city arboretum of labeled trees and woody plants along Garden Springs Creek, with a self-guided walking tour. Free entry, open 6 a.m. to 10 p.m.
Four-acre woodland garden in Shoreline with native and rare plants, ponds, sculpture and a plant nursery. Free entry, open Thursday to Sunday.
Arboretum in Lake Wilderness Park with themed gardens, a children’s forest and a StoryWalk. Free entry, open every day from dawn to dusk.
Historic estate gardens on Gravelly Lake in Lakewood with about 10 acres of formal and natural settings. From November the gardens open Friday and Saturday only.
Whidbey Island rhododendron garden with 10 acres of display gardens and 43 acres of woodland trails. Open daily; adults pay $10.
Hillside alpine gardens with stone pathways, waterfall and pools near Wenatchee. Open April 15 to October 15; adults pay $10.
A 4.6-acre Sichuan-style Chinese garden at South Seattle College with plants, stone, architecture and water. Entry is free; leashed dogs allowed.
Auburn garden with international, regional and historical themed gardens. Free entry, open Wednesday to Saturday from March to October.
Five-acre campus arboretum built by horticulture students, with a conifer collection and a view over Elliott Bay. Open every day from dawn until dusk.
230-acre arboretum on Lake Washington with woody plant collections, trails and named garden areas. Grounds are open daily, and the visitor center keeps shorter hours.
A 27-acre arboretum park in Tacoma with more than 600 trees and the W.W. Seymour Botanical Conservatory. Open from half an hour before sunrise.
Urban arboretum of 46 acres in Yakima with display gardens, tree collections and natural areas. Open every day from dawn to dusk.
These are gardens we could check against their own official websites, not every garden in the area. “Free” refers to general garden entry, not parking, tours or special events. We do not show live opening status.
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