Hybrid / Species crosses.  Coral-pink.  Mild fragrance.  Large, single bloom form.  Early.  Height of 26" to 32" (65 to 80 cm).   William Henry Krekler (1978).

7 favorite votes.  

Hybrid lactiflora.  Crimson - purple.  Moderate fragrance.  Very full bloom form.  Height of up to 3' (up to 90 cm).   Louis-Joseph-Ghislain Parmentier (1850).

7 favorite votes.  

Hybrid suffruticosa.   Auguste Dessert (1902).

7 favorite votes.  

Hybrid lactiflora.   Julian L. Janus.

7 favorite votes.  

Hybrid suffruticosa.  Purple.  Large bloom form.  Height of 26" to 28" (65 to 70 cm).   Roger F. Anderson (1992).

7 favorite votes.  

Hybrid lactiflora.  Pink, ages to white .  None / no fragrance.  Single bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 39" (up to 100 cm).   Auguste Dessert (1905).

7 favorite votes.  

Hybrid lactiflora.  Light pink.  None / no fragrance.  Large, double bloom form.  Late.  Height of up to 28" (up to 70 cm).   Ben Gilbertson (1970).

7 favorite votes.  

Tree peony.  Red, ages to purple.  Early.  USDA zone 2a and warmer.   Unknown Chinese Breeder(s).

7 favorite votes.  

Hybrid lactiflora.  Red.  Large, double bloom form.  Midseason.  Height of up to 28" (up to 70 cm).   Arthur L. Murawska (1959).

7 favorite votes.  

Hybrid lactiflora.  Clear shell pink with occasional crimson edges to outer petals.  Strong, sweet fragrance.  Very large, double, cupped bloom form.  Late midseason.  Height of up to 32" (up to 80 cm).   George C. Thurlow (1919).

7 favorite votes.  

Hybrid lactiflora.  Dark red.  Garnet-red.  Double bloom form.   Myron D. Bigger (1947).

7 favorite votes.  

Hybrid / Species crosses.  White, green undertones.  Double, ruffled bloom form.  Midseason.  Height of 30" to 3' (75 to 90 cm).   E.L. "Roy" Pehrson (1975).

7 favorite votes.  

Hybrid lactiflora.  White, lilac shading, amber center.  Mild, medicinal fragrance.  Medium, Japanese (anemone, imperial) bloom form.  Early-to-mid.  USDA zone 2a and warmer.   Kelway (and Son) (1900).

7 favorite votes.  

Hybrid lactiflora.  Light pink, cream center.  Large, double bloom form.  Late midseason.   William Henry Krekler (1958).

7 favorite votes.  

Hybrid suffruticosa.  Rose-pink or light pink, lilac shading.  Strong fragrance.  Very large, semi-double to double, flat bloom form.  Early.  
Height: up to 6'7" (up to 200cm).   Unknown Chinese Breeder(s) (1794).

7 favorite votes.  

Hybrid lactiflora.  Red, purple shading, darker center.  Mild fragrance.  Medium, full, bomb bloom form.  Late.  USDA zone 3b through 9b.  Height of 2' to 4' (60 to 120 cm).   Unknown Chinese Breeder(s).

7 favorite votes.  

Hybrid suffruticosa.  Purple.  Medium, double, lotus bloom form.   Charles His (1851).

7 favorite votes.  

Hybrid lactiflora.   D.M. Andrews (1925).

7 favorite votes.  

Hybrid suffruticosa, Tree peony.  Pink.  Cherry-pink.  Very large, double, ruffled bloom form.  USDA zone 2a and warmer.   Unknown Japanese Breeder(s) (1931).

7 favorite votes.  

Hybrid lactiflora.   Prof. Arthur Percy Saunders (1921).

7 favorite votes.  

Hybrid lactiflora.  Deep mulberry, silver(y) edges.  Crown bloom form.  Late midseason.   Edward Auten, Jr. (1941).

7 favorite votes.  

Hybrid lactiflora.  Pink and white.  Strong fragrance.  Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 3b through 9b.  
Height: 2' to 3' (60 to 90cm).   Luc Klinkhamer (1987).

7 favorite votes.  

Hybrid lactiflora.  Light pink, ages to cream .  Medium, double bloom form.  Midseason.  

7 favorite votes.  

Hybrid lactiflora.  Rose-pink, lighter center, light purple shading.  Cluster-flowered.  Mild to strong fragrance.  Very large, full, rose bloom form.  Prolific, midseason.  USDA zone 2a and warmer.  Height of up to 6' 8" (up to 205 cm).   Auguste Dessert (1904).

7 favorite votes.