The long-awaited third edition of Allan Armitage's masterpiece on garden perennials will be released in April of 2008. Armitage's extensive traveling, teaching and trialing experiences provide a depth of understanding of the best ornamental perennials for North American gardens unparalleled by any other garden writer. One of the most definitive and conclusive books written about perennials, the first edition was designated as one of the best 75 books written in the last 75 years by the American Horticulture Society, and the third promises to be even better.