Hybrid lactiflora.  White, light pink highlights.  Double, rose bloom form.  USDA zone 2a and warmer.   Col. Jesse C. Nicholls (1937).

6 favorite votes.  

Hybrid lactiflora.  Light pink.  Semi-double to double bloom form.  USDA zone 2a and warmer.   Archie M. Brand (1933).

6 favorite votes.  

Hybrid suffruticosa.  Lilac - pink.  Single bloom form.   Auguste Dessert (1909).

6 favorite votes.  

Hybrid lactiflora.  Light pink.  Blush.  Large, single bloom form.  Early.   Walter L. Gumm (1930).

6 favorite votes.  

Hybrid lactiflora.  Purple - violet.  Large, double bloom form.  Late.   François-Félix Crousse (1840-1925) (1879).

6 favorite votes.  

Hybrid lactiflora.  Deep pink or rose-pink.  Narrow center petals.   Jacques Calot (1858).

6 favorite votes.  

Tree peony.  Purple - red, darker undertones.  Strong fragrance.  Crown bloom form.  Very early.  USDA zone 2a and warmer.  

6 favorite votes.  

Hybrid lactiflora.  Blush, light pink center, lighter outer petals.  Large, double, cupped bloom form.   Ernest Flint Kelsey (1938).

6 favorite votes.  

Hybrid suffruticosa.  Light pink.  Large bloom form.   Charles His (1851).

6 favorite votes.  

Hybrid lactiflora, Unknown.  Cream, light pink shading.  Moderate fragrance.  Double bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of up to 30" (up to 75 cm).   Roy G. Klehm (1993).

6 favorite votes.  

Hybrid / Species crosses.  Red.  Semi-double to double bloom form.  Early.  USDA zone 2a and warmer.   Prof. Arthur Percy Saunders (1950).

6 favorite votes.  

Hybrid suffruticosa, Tree peony.  White.  Mild fragrance.  Large, semi-double to double bloom form.  Height of 2' to 35" (60 to 90 cm).   Unknown Japanese Breeder(s) (1931).

6 favorite votes.  

Hybrid lactiflora.  Red.  Glossy.  Medium, double bloom form.   William Henry Krekler (1977).

6 favorite votes.  

Hybrid lactiflora.  White.  Large, single bloom form.  Early.   Gilbert H. Wild & Son (1950).

6 favorite votes.  

Hybrid suffruticosa, Tree peony.  Carmine-red, purple shading.  Large, double bloom form.  USDA zone 2a and warmer.   Unknown Japanese Breeder(s).

6 favorite votes.  

Hybrid lactiflora.  Rose-red.  Staminoids edged yellow.  Large, cupped, Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  Height of 38" (95 cm).   Edward J. Gardner (1951).

6 favorite votes.  

Tree peony.  USDA zone 2a and warmer.  

6 favorite votes.  

Hybrid lactiflora.  Crimson or dark red.  Full bloom form.  Midseason.  USDA zone 2a and warmer.   BRAND (1907).

5 favorite votes.  

Hybrid lactiflora.  Deep pink, darker center.  Japanese (anemone, imperial) bloom form.  Late midseason.  USDA zone 2a and warmer.  Height of up to 30" (up to 75 cm).   Edward Auten, Jr. (1944).

5 favorite votes.  

Hybrid / Species crosses.  Red, yellow center.  Moderate fragrance.  Single, cupped bloom form.  Early.  Height of up to 28" (up to 70 cm).   William Henry Krekler (1984).

5 favorite votes.  

Hybrid lactiflora.   Auguste Dessert (1908).

5 favorite votes.  

Hybrid lactiflora.  Carmine-pink, lilac shading.  Slaty reflexes.  Large, double bloom form.  Midseason.   Jacques Calot (1865).

5 favorite votes.  

Hybrid Lutea, Tree peony.  Yellow, lavender shading, purple flares.  Large, semi-double bloom form.  Midseason.   Prof. Arthur Percy Saunders (1940).

5 favorite votes.  

Hybrid rockii, Tree peony.  White, dark purple flares.  Single to semi-double, ruffled bloom form.  Early.   Dr. Joseph Rock (1926).

5 favorite votes.