Excellent resourse to add to one's library collection when growing Clematis! The author discusses the different Clematis groups, their cultivation, and companions to match these incredible vines with in the Spring, Summer & Fall. I also find the listings of Clematis cultivars by large or small species, variety, color, features, heights (approx.) an added bonus and an excellent "quick guide" when locating certain Clematis for unique growing conditions. Plus, beautiful color photographs compliment the text. A definite MUST read for all gardeners interested in growing these beautiful and versatile vines!!!