With more than 800 Clematis species and cultivated varieties from which to choose, gardeners and growers have been inundated with options. Even more frustrating for some has been the absence of a single comprehensive reference with which to identify the numerous cultivars. This new volume, written by distinguished clematis experts and backed by the authority of the British Clematis Society, is the first picture encyclopedia on the genus to encompass the garden-worthy species and hybrids. This long-awaited book is separated into two sections: the first is devoted to the care and cultivation of clematis, while the second provides an A-Z directory of more than 550 plants, from the acclaimed large-flowered forms to the less-familiar shrubby, subshrubby, and herbaceous forms that are beginning to be available. Using everyday language, the authors provide plant descriptions that include information on synonyms, origin, plant habit and height, flowers, pruning group, flowering period, cultural requirements, recommended uses in the garden, and hardiness zones. The text is accompanied by more than 650 magnificent color photos, making this encyclopedia an indispensable reference and guide.