origin:
Japan, before 1893
PEONIES, The Manual of the American Peony Society, ed. by James Boyd, Copyright 1928 by American Peony Society: Tree Peony Check-list.
Yokohama Nurseries, Yokohama, Japan. 1893 catalogue as Yokohama Gardens Association, beginning 1894 as Yokohama Nurseries.
Shi-un-ryo. (originated in Japan, 1893.) offered by Yokohama Nurseries, Yokohama, Japan. 1893, 1898, 1902, 1905. (Presumed to be in commerce, 1927.)
The Chugai Nursery, Yamamoto, Japan, Catalog 1940-1941: Tree peony, miscellaneous varieties:
