Hybrid lactiflora.  Dark red, yellow center.  Japanese (anemone, imperial) bloom form.  Late.  USDA zone 2a and warmer.  Height of up to 18" (up to 45 cm).   Albert Niva (1999).

6 favorite votes.  

Hybrid suffruticosa.  Purple.  Full bloom form.   Modeste Guérin (1846).

6 favorite votes.  

Hybrid Lutea, Tree peony.  Yellow.  Semi-double, ruffled bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 3' to 4' (90 to 120 cm).   Prof. Arthur Percy Saunders (1944).

6 favorite votes.  

Hybrid / Species crosses.  Coral-red.  Double bloom form.  Early.  USDA zone 2a and warmer.  Height of up to 39" (up to 100 cm).   Mrs. Mary E.G. Freeborn (1943).

6 favorite votes.  

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

6 favorite votes.  

Hybrid lactiflora.  Light pink, yellow center.  None to mild fragrance.  Single to semi-double, flat bloom form.  Midseason.  Height of 34" to 3' (85 to 90 cm).   Don Hollingsworth (1980).

6 favorite votes.  

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

6 favorite votes.  

Hybrid / Species crosses.  Light pink, white center.  Strong fragrance.  Semi-double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 32" to 35" (80 to 90 cm).   Prof. Arthur Percy Saunders (1953).

6 favorite votes.  

Hybrid lactiflora.  Cream.  Golden stamens.  Strong fragrance.  Very large, full, rose bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of 31" to 3' (80 to 90 cm).   Carl G. Klehm (1963).

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.  Rose-pink, cream center, buff center, rose-pink center.  Mild fragrance.  Medium, double bloom form.  Midseason.  Height of up to 39" (up to 100 cm).   Unknown Chinese Breeder(s).

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 lactiflora.   Julian L. Janus.

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 lactiflora.  Red, yellow center.  Semi-double to double bloom form.  Midseason.   Krasnova / Краснова (1960).

6 favorite votes.  

Hybrid / Species crosses.  Pink, yellow center.  Pink bonnet.  Mild fragrance.  Large, Japanese (anemone, imperial) bloom form.  Late midseason.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   Don Hollingsworth (1980).

6 favorite votes.  

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

6 favorite votes.  

Hybrid lactiflora.  Pink.  Large, double bloom form.  Late.  USDA zone 2a and warmer.  Height of 30" (75 cm).   Robert William Tischler (1967).

6 favorite votes.  

Species, Tree peony.  Dark red, brown undertones.  Small, single bloom form.  USDA zone 2a and warmer.  Height of up to 39" (up to 100 cm).  

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.  

Hybrid lactiflora.  Deep pink, lighter center, white undertones.  Moderate fragrance.  Double, bomb bloom form.  Midseason.  USDA zone 2a and warmer.  Height of 2' to 3' (60 to 90 cm).   Myron D. Bigger (1961).

6 favorite votes.  

Hybrid suffruticosa, Tree peony.  Red, purple shading.  Large, double bloom form.  Height of up to 47" (up to 120 cm).   Unknown Japanese Breeder(s).

6 favorite votes.