Spokane Urban Forestry presents family activities, tree care and environmental education. Spokane County Master Composters also share all there is to know about bringing life to your soil. Visitors can enjoy tours of the trees and history of the Arboretum, learn how to attract birds and bugs to help a garden and yard thrive. The Arbor Day Foundation also recognizes Spokane with a Tree City USA designation for the 15th consecutive year. Ceremony begins at 1 pm with remarks from Mayor David Condon, Washington State Urban & Community Forestry Manager Linden Lampman, and Environmental and Sustainability Manager Cadie Olsen.