Hybrid rockii, Tree peony.  White, dark purple flares.  Mild, sweet fragrance.  Very large, semi-double to double bloom form.  Early.  
Height: up to 4' (up to 120cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Lemon-yellow, mauve shading, fuchsia / magenta stripes.  Golden stamens.  Semi-double to double, ruffled bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Red or crimson.  Gold stamens visible.  Medium to large, semi-double to double bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Pink, ages to lighter .  Golden stamens visible.  Medium, semi-double to double bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Raspberry red.  Yellow stamens.  Large, semi-double to double bloom form.  Prolific.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Deep pink and fuchsia / magenta, crimson edges.  Yellow stamens.  Very large, semi-double to double bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Peach - pink, deep pink flares.  Yellow stamens.  Semi-double bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Lemon-yellow.  Golden stamens visible.  Medium to large, semi-double to double bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Lemon-yellow and peach, cerise shading, darker edges.  Yellow stamens visible.  Double, bomb bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Hybrid rockii, Tree peony.  Lilac-pink and cream, violet-red flares.  Mild, sweet fragrance.  Medium to large, double, Japanese (anemone, imperial) bloom form.  Midseason.  
Height: up to 4' (up to 120cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Strawberry pink.  Yellow stamens visible.  Medium, double bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Yellow or golden-yellow, ages to orange-pink .  Golden stamens.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).

Intersectional Hybrid / Itoh.  Light pink and cream, orange-red flares.  Golden stamens.  Semi-double bloom form.  USDA zone 3a through 8a.  
Height: up to 3' (up to 90cm).  Width: up to 3' (up to 90cm).