origin:
Japan, probably Chugai Nursery, before 1940
The Chugai Nursery, Yamamoto, Japan, Catalog 1940-1941: Paeonia albiflora (Herbaceous Peonies) All the following Herbaceous peonies are of the true Japanese type semi-double incurved petals forming regular cup-shape, showing a bunch of yellow stamens. Any of them is worthy for your appreciation:
Mai-no-sode, Deep cherry pink, shading to the tip, bowl shaped flower of large size.
