Rural and urban Iowans alike start planning next summer's garden in midwinter, when their plots are still snow-covered and deep-frozen; by state fair time their trees, shrubs, vegetables - including the ubiquitous zucchini - and flowers are thriving. Veronica Fowler's month-by-month guide to gardening in Iowa is a concise, valuable resource for all novice and experienced gardeners. Beginning in January, Fowler presents a monthly checklist to allow gardeners to prioritize seasonal tasks. Her winter chapters focus on garden design, cold-weather gardening, and starting plants from seeds; in spring she moves into soil preparation, shopping for plants, wildflower and rose cultivation, and lawn care basics; summer brings landscaping, flowers for cutting, and organic gardening; and fall involves cold frames, winter-harvest vegetables, forcing bulbs, and composting. Fowler includes lists of the bulbs and perennials, trees and shrubs, and ground covers and vines best suited for Iowa's climate as well as information on mail-order suppliers, gardens to visit, where to go for help, and garden club membership. Tips from some of the more than two thousand members of the Federated Garden Clubs of Iowa round out this plentiful harvest of useful advice.