Meet the Peonies Mikado Details Floral form Japanese Season Midseason Cultivar Lactiflora Year introduced 1893 Year acquired 1925 Breeder Peterson Country of origin United States Location Bed 24 Row 4 Column A Bed 24 Row 4 Column B History 1918-B006-I:24 1921-B014:21 Symposium II rating: 8.0 1923-SPN:351 1928-B:56 Double. 7.7 (Sym. 1925). White, with yellow center. 1976-K:103 (Pleas, 1900) – Double – White, with yellow center. Midseason.