Hybrid lactiflora.  Light pink, cream center.  Strong, lemon fragrance.  Large, double bloom form.  Late.  USDA zone 2a and warmer.  Height of 16" to 20" (40 to 50 cm).   Victor Lemoine & Sons (1922).

8 favorite votes.  

Hybrid lactiflora.  Red.  None / no fragrance.  Large, full bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   D. Steve Varner (1970).

8 favorite votes.  

Hybrid lactiflora.  White, light yellow center.  Moderate fragrance.  Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 30" (up to 75 cm).   Carl G. Klehm (1959).

8 favorite votes.  

Hybrid lactiflora.  White, golden-yellow center.  Large, single bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Archie M. Brand (1928).

8 favorite votes.  

Herbaceous species, Species.  Red.  Citrus fragrance.  Single bloom form.  Early.  USDA zone 2a and warmer.  Height of 20" to 2' (50 to 60 cm).  

8 favorite votes.  

Hybrid lactiflora.  Red.  Double bloom form.  

8 favorite votes.  

Hybrid / Species crosses.  Red, red center.  Staminoids edged yellow.  Japanese (anemone, imperial) bloom form.  USDA zone 2a and warmer.  Height of up to 33" (up to 85 cm).   Walter Z. Mains (1957).

8 favorite votes.  

Hybrid / Species crosses.  Crimson, yellow center.  Medium, single bloom form.  USDA zone 2a and warmer.  Height of 26" to 35" (65 to 90 cm).   Edward Auten, Jr. (1968).

7 favorite votes.  

Hybrid suffruticosa, Tree peony.  White.  Mild fragrance.  Semi-double bloom form.  Early.  USDA zone 2a and warmer.  

7 favorite votes.  

Hybrid lactiflora.  Dark red.  Moderate fragrance.  Single bloom form.   Unknown Chinese Breeder(s).

7 favorite votes.  

Tree peony.  Yellow.  Mild fragrance.  Mid.  USDA zone 2a and warmer.  

7 favorite votes.  

Intersectional Hybrid / Itoh.  White, lavender flares.  None to mild fragrance.  Semi-double bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 2' (up to 60 cm).   Roger F. Anderson (1984).

7 favorite votes.  

Hybrid / Species crosses.  Dark red.  Wine-red.  Semi-double to double, Japanese (anemone, imperial) bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 30" (up to 75 cm).   William Henry Krekler (1977).

7 favorite votes.  

Hybrid lactiflora.  Ruby-red.  Mild fragrance.  Medium to large, double, bomb bloom form.  Late midseason.  USDA zone 6b through 9b (default).  Height of up to 3' (up to 90 cm).   François-Félix Crousse (1840-1925) (1881).

7 favorite votes.  Average rating: EXCELLENT-.  

Hybrid Lutea, Tree peony.  Butter-yellow, red flares.  Strong, sweet fragrance.  Semi-double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 5' (150 cm).   Prof. Arthur Percy Saunders (1952).

7 favorite votes.  

Hybrid lactiflora.  Dark red.  Double bloom form.  Late midseason.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Edward Auten, Jr. (1952).

7 favorite votes.  

Hybrid lactiflora.  Red, purple shading.  Very double, crown bloom form.  Early.   Unknown Chinese Breeder(s).

7 favorite votes.  

Hybrid / Species crosses.  Red.  Yellow anthers, red stamens.  None to mild fragrance.  Very large, single bloom form.  Early.  
Height: up to 32" (up to 80cm).   Lyman D. Glasscock (1931).

7 favorite votes.  

Hybrid lactiflora.  Cerise, purple shading.  Mild fragrance.  Medium to large, double, Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  
Height: up to 35" (up to 90cm).   Jacques Calot (1863).

7 favorite votes.  

Hybrid lactiflora.   Berneche (1924).

7 favorite votes.  

Hybrid lactiflora.   Peter Barr.

7 favorite votes.  

Tree peony.  Pink.  Mild fragrance.  Mid.  USDA zone 2a and warmer.  

7 favorite votes.  

Hybrid lactiflora.  Light pink, deep pink center, light yellow undertones.  Mild fragrance.  Double bloom form.  Mid-to-late.  Height of up to 30" (up to 75 cm).   Allen J. Wild (1952).

7 favorite votes.  

Tree peony.  White.  USDA zone 2a and warmer.  

7 favorite votes.