Rhonda Massingham Hart is a master gardener and the author of Vertical Vegetables & Fruit, The Dirt-Cheap Green Thumb, Deerproofing Your Yard & Garden, and Squirrel Proofing Your Home & Garden. She has written articles for a variety of magazines, including Flower & Garden, Woman's Day, and Fine Gardening. She writes extensively on organic gardening techniques and lives in Washington State.