An in-depth guide to a plant group prized for its vivid blue hue. Renowned for its stunning blue flowers, agapanthus--sometimes known as the blue lily or lily of the Nile--is a group of rhizomatous plants native to southern Africa. First cultivated in the Netherlands in the late seventeenth century, it rose to prominence as a conservatory plant in England during the eighteenth and nineteenth centuries after certain varieties were found to be hardy enough to withstand the colder climate of the British Isles. Graham Duncan's The Genus Agapanthus provides both a revised classification of this plant group and a superbly illustrated celebration of their unique beauty. Featuring new watercolors from South African artist Elbe Joubert and color photographs showing the species in their spectacular and varied natural habitats, the book also highlights a selection of more than 150 of the most notable agapanthus cultivars from growers across Europe, Africa, and Oceania. The agapanthus's natural history is spotlighted as well, with comprehensive descriptions of each species, maps of their global distribution, and information on how to successfully cultivate, propagate, and care for them. This book's blend of science, horticulture, and art makes it essential for all varieties of plant lovers.