Hybrid lactiflora.  Lilac-pink, lighter reverse.  Very double bloom form.   Jacques Calot (1862).

5 favorite votes.  

Hybrid lactiflora.  White.  Double bloom form.  USDA zone 2a and warmer.   Walter J. Guille (1928).

5 favorite votes.  

Hybrid lactiflora.  Light pink.  Yellow collar.  Large, double bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   Hans Peter Sass (1930).

5 favorite votes.  

Hybrid suffruticosa.  Rose-pink.  Very large, single, Japanese (anemone, imperial), ruffled bloom form.  Late midseason.   Unknown Japanese Breeder(s) (1893).

5 favorite votes.  

Hybrid lactiflora.  White, salmon-pink shading, rose-pink center, white center.  Large, double, rose bloom form.  Midseason.  USDA zone 2a and warmer.   François-Félix Crousse (1840-1925) (1885).

5 favorite votes.  

Hybrid / Species crosses, Hybrid lactiflora.  Deep pink, yellow center, ages to lighter.  Light red.  Medium to large, semi-double, Japanese (anemone, imperial) bloom form.  USDA zone 2a and warmer.   Walter Z. Mains (1956).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Small, single bloom form.  Midseason.   Berneche (1894).

5 favorite votes.  

Hybrid lactiflora.   Julian L. Janus.

5 favorite votes.  

Hybrid suffruticosa, Tree peony.  Light pink, dark red flares, lavender highlights.  Large, double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 4' (120 cm).   Unknown French Breeder(s) (1899).

5 favorite votes.  

Hybrid / Species crosses.  Cream.  Moderate fragrance.  Single bloom form.  Height of up to 32" (up to 80 cm).   Eivind Hansen (2006).

5 favorite votes.  

Unknown.  USDA zone 2a and warmer.  

5 favorite votes.  

Hybrid lactiflora.  White, golden-yellow center.  Moderate fragrance.  Single, Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Millet & Son (1928).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Large, double bloom form.  USDA zone 2a and warmer.   Alonzo B. Franklin.

5 favorite votes.  

Hybrid / Species crosses.  Deep pink.  Double bloom form.  Early.   Lyman D. Glasscock (1964).

5 favorite votes.  

Hybrid suffruticosa.  White.  Single bloom form.  Height of up to 28" (up to 70 cm).   Unknown Japanese Breeder(s) (1913).

5 favorite votes.  

Hybrid / Species crosses.  Dark red.  Single bloom form.   William Henry Krekler (1977).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Mild fragrance.  Full, rose bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Auguste Dessert (1922).

5 favorite votes.  

Fernleaf Hybrid, Hybrid / Species crosses.  Red.  Strong fragrance.  Medium to large, single bloom form.  Early.  USDA zone 2a and warmer.  Height of 2' to 30" (60 to 75 cm).   Prof. Arthur Percy Saunders (1953).

5 favorite votes.  

Hybrid lactiflora.  White.  Large, double, cupped bloom form.  Very early.  USDA zone 2a and warmer.   Edouard Doriat (1924).

5 favorite votes.  

Hybrid lactiflora.  Light pink or blush, ages to white .  Large, very double bloom form.  Late.  
Height: up to 35" (up to 90cm).   Francis H. Allison (1931).

5 favorite votes.  

Hybrid rockii.  White, dark purple flares.  Moderate fragrance.  Double, ruffled bloom form.  Early.   Chen Dezhong (1992).

5 favorite votes.  

Hybrid / Species crosses.  Red.  Single bloom form.  Height of up to 29" (up to 75 cm).   William Henry Krekler (1978).

5 favorite votes.  

Hybrid lactiflora.  Red.  Semi-double bloom form.  USDA zone 2a and warmer.   Edward Auten, Jr. (1951).

5 favorite votes.  

Hybrid lactiflora.  Red, purple shading, silver(y) edges.  Large, double bloom form.  Midseason.  Height of up to 32" (up to 80 cm).   Auguste Dessert (1915).

5 favorite votes.