Mark is Education & Exhibits Director for Pittsburgh Botanic Garden. He holds a B.S. in Horticulture, with an M.S. in Agricultural Education and a Ph.D. in Environment and Natural Resources from Ohio State University. Mark served 40 years as a landscape designer in Ohio, DC, and San Antonio, Director of Horticulture/Co-Director of Education for the American Horticultural Society, Deputy Director of National Programs for AHS, with seven years as Content Director for Learn2Grow.com and https://Growums.com.