Hybrid suffruticosa, Tree peony.  White.  Sometimes magenta highlights at base of petals. White sheath.  Large, double bloom form.  Mid-to-late.  USDA zone 2a and warmer.   Unknown Japanese Breeder(s) (1910).

Hybrid suffruticosa, Tree peony.  Purple.  None / no fragrance.  Very large, semi-double to double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 47" to 4' 11" (120 to 150 cm).   Unknown Japanese Breeder(s) (1910).

Hybrid suffruticosa.   Unknown Japanese Breeder(s) (1927).

Hybrid suffruticosa, Tree peony.  Red.  Outer petals edged white.  Medium, semi-double bloom form.  Midseason.  USDA zone 2a and warmer.   Unknown Japanese Breeder(s) (1927).

Hybrid suffruticosa.  Dark red, purple shading.  Medium, semi-double bloom form.  Midseason.   Unknown Japanese Breeder(s) (1927).

Hybrid suffruticosa, Tree peony.  Flesh pink, white shading, deep rose at base.  Mild fragrance.  Large, semi-double bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 4¼' (up to 130 cm).   Unknown Japanese Breeder(s) (1927).