Book excerpt: "From the towering Burmese magnificum, with its three-foot-diameter trunk and its masses of sweet-smelling purple flowers, to the potted pink azalea, glowing like a burning bush on the backyard garden patio, Rhododendron is a genus of infinite variety and beauty. There are 1,025 known species: it is a native of the snows of the Himalayas and the swamps of the Carolinas, the jungles of Borneo and the island inlets of Japan. It is also one of the oldest of plants - many believe the dove that returned to Noah's ark was carrying a rhododendron sprig - although it has been known to western horticulture for only 300 years. The curious history of Westerners and rhododendrons is full of swashbuckling plant collectors and visionary gardeners, colonial violence and ecological destruction, stunning botanical successes and bitter business disappointments. And it is here related with consummate skill by Jane Brown, an English garden writer."--BOOK JACKET.