[1] The arboretum was established in 1949 after the last living executor of the John A. Finch estate released $250,000 for the purpose.

[2] The landscape follows Garden Springs Creek, and now contains about 2,000 trees and shrubs, including 65 groups of lilacs, as well as a rhododendron grove, conifer and maple collections, and a nature trail.

I-90 and the Sunset Highway, which use the valley to descend into Spokane from the higher elevation of the Columbia Plateau, respectively form the southern and northern borders of the park.

The arboretum is home to the Touch and See Nature Trail, which is owned by the Girl Scout council in the area.

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