The Graham Visitors Center (GVC) and Arboretum Gift Shop are open to the public Tuesday through Sunday, 10:00 a.m. – 4:00 p.m. and GVC restrooms are open 9:00 a.m. – 5:00 p.m. daily, accessible only from the exterior of the building. Other restrooms are available at the bus turnaround in the Pacific Connections Garden, Washington Park Playfield and Seattle Japanese Garden (south end of the Arboretum) during limited times of the year. 

The Washington Park Arboretum holds a world class collection of woody plants that can be explored on your own, via group tours, or through classes and activities. All parts of the Washington Park Arboretum, with the exception of the Japanese Garden, are open to the public and are free of charge. The Graham Visitors Center has maps, restrooms,   Arboretum Foundation offices, a gift shop and rental venue. Year round visitors will find something of interest along the trails that wind through 230 acres of gardens, natural areas and wetlands.