From spring green to winter gold, the drama of grasses is nonstop. There are the striking yellow-and-green ostrich plumes of Zebra Grass. The fine-textured leaves of Blue Oat Grass. Flame Grass's dazzling red-orange leaves, Fountain Grass's coppery brushes, the rich brown nuggets of Northern Sea Oats, the feathery purple haze of Switch Grass.<P> Whether on their own or as backdrops for colorful garden flowers, ornamental grasses are admired for their color, form, movement, and texture. They also aid in erosion control, soil stabilization, and water retention, making them great conservation tools for gardeners in all hardiness zones. Although grasses are widely available at garden centers all over North America, few books advise the gardener on how to use them in the garden - and especially how to combine them with perennials and other plants. GRASSES features plans and practical advice for more than 24 unique gardens. It's complete with an identification and growing guide to the plants, and it features more than 150 full-color photographs, illustrations, and landscape plans.<P>