Hybrid lactiflora.  White.  Strong, rose fragrance.  Medium to large, full bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of 30" to 3' (75 to 90 cm).   Lyman Cousins (1946).

7 favorite votes.  

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

7 favorite votes.  

Hybrid suffruticosa, Tree peony.  White, blush shading.  Mild, citrus fragrance.  Large, double bloom form.  Midseason.  USDA zone 2a and warmer.  
Height: up to 8' (up to 245cm).  Width: up to 7' (up to 215cm). Unknown Chinese Breeder(s).

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.  

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 Lutea, Tree peony.  Pink, yellow undertones, deep pink veining, purple flares.  Moderate fragrance.  Single, ruffled bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 5' (up to 150 cm).   Prof. Arthur Percy Saunders (1948).

7 favorite votes.  

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 lactiflora.   Kelway (and Son).

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.   Berneche (1924).

7 favorite votes.  

Hybrid lactiflora.   Peter Barr.

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.  Large, double, rose bloom form.  Midseason.  USDA zone 2a and warmer.  Height of 26" to 32" (65 to 80 cm).   Carl G. Klehm (1952).

7 favorite votes.  

Hybrid / Species crosses.  Coral-pink, ages to cream .  Moderate fragrance.  Semi-double, cupped bloom form.  Early.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   Roy G. Klehm (1972).

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.  

Hybrid lactiflora.  Pink, deep pink undertones.  Mild, sweet fragrance.  Double bloom form.  Late.  Height of up to 35" (up to 90 cm).   Don Hollingsworth (1973).

7 favorite votes.  

Hybrid / Species crosses.  Rose-pink, yellow center.  Small, single, cupped bloom form.  Very early.  Height of up to 14" (up to 35 cm).   William Henry Krekler (1985).

7 favorite votes.  

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

7 favorite votes.  

Hybrid suffruticosa.  Violet-red, fuchsia / magenta shading.  Large, full bloom form.   Joseph Pernet-Ducher (1885).

7 favorite votes.  

Hybrid lactiflora.  Deep pink.  Double bloom form.  Mid-to-late.   Eugene H. Lins (1942).

7 favorite votes.