National Geographic : 1947 Jul
National Geographic Society Yunnan-Szechwan Expedition Rhododendron Seed Gathered on This Peak, Tayin Shan, China, Was Sent Back toAmerica When Dr. Joseph F. Rockled the National Geographic Society's Yunnan Province Expedition in1923, heforwarded toWashington, D.C., seed of many varieties previously unknown to the United States, this deep crimson-flowered Rhododendron Delavayi included. While such items may not prove hardy here, expert growers sometimes coddle them long enough toget them toflower. Hybridists then can cross them with such things asthe native Rhododendron catawbiense. Afew descendants would have this new color combined with the hardiness ofthe native.