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...