Scott Calhoun is an award-winning garden designer and the author of two previous books, Chasing Wildflowers and Yard Full of Sun, for which he won the American Horticultural Society's book award in 2006. Formerly the "Garden Expert" for Tucson's CBS affiliate, Calhoun now writes a weekly garden design column for The Arizona Daily Star and the Western states plant notes column for Country Gardens magazine. He's also a regular contributor to Sunset and Horticulture magazines. His Web site is www.zonagardens.com.