Michael Chamberland serves as the Assistant Agent for Urban Horticulture with the University of Arizona Maricopa County Cooperative Extension. I work with Urban Horticulture, which includes overseeing the Maricopa County Master Gardener Program and plant problem diagnostic work, especially for the commercial horticulture industry. I have considerable experience with curation and management of living collections at botanical gardens, including the Desert Botanical Garden, Tucson Botanical Gardens, and the U.S. National Arboretum in Washington DC. My prior work with University herbaria has engaged me with many aspects of native and introduced plants in Arizona.