Mary Irish is the former director of public horticulture at the Desert Botanical Garden in Phoenix, Arizona. She has written extensively on dry-climate gardening, and is the coauthor (with her husband, Gary Irish) of "Agaves, Yuccas, and Related Plants." A Texas native residing in Arizona, Mary received her master's degree in geography from Texas A&M University. She is a regular contributor to several magazines, including "Sunset, " and teaches classes on the care and culture of agaves, cacti, and other desert shrubs and perennials as well as introductory classes for beginning gardeners. She once hosted a weekly Phoenix-based radio show called "The Arizona Gardener, " and has also helped produce several television programs about gardening.
Phillips is a writer,landscape designer,horticulturist,and an expert on native and arid-adapted plants.