This 230-acre oasis on the shores of Lake Washington is jointly managed by the University of Washington Botanic Gardens and the City of Seattle.
The property holds a dynamic assortment of plants, some found nowhere else in the Northwest, including a world-class collections of oaks, maples and camellias, and "the best winter garden in the West!" The Arboretum collections are displayed in a variety of thematic gardens, ranging from the eco-geographic gardens to seasonal gardens. Some collections are displayed by taxonomic group.
Paths take visitors through a rhododendron glen, an azalea walk and a woodland garden, and the Waterfront Trail leads to the shoreline, Marsh and Foster Islands.
A Japanese garden located at the south end of the Arboretum has an entrance fee.