Hybrid lactiflora.  Red.  Double bloom form.  USDA zone 2a and warmer.   Ona I. Skeivene (1907).

3 favorite votes.  

Hybrid Lutea, Tree peony.  Light yellow, red flares, ages to white.  Semi-double bloom form.  Early.  USDA zone 2a and warmer.   Nassos Daphnis (1960).

3 favorite votes.  

Hybrid / Species crosses.  Crimson.  Single bloom form.  Early.  USDA zone 2a and warmer.  Height of 25" (65 cm).   Edward Auten, Jr. (1968).

3 favorite votes.  

Hybrid suffruticosa.  Crimson - scarlet, rose-pink shading.  Large, double bloom form.  Midseason.   Unknown Japanese Breeder(s) (1893).

3 favorite votes.  

Hybrid lactiflora.  Pink.  Peach-pink.   Kelway (and Son) (1928).

3 favorite votes.  

Hybrid suffruticosa.  Blush or flesh-pink.  Very large, double bloom form.   E. H. Krelage & Zoon (1867).

3 favorite votes.  

Hybrid suffruticosa.   Auguste Dessert (1913).

3 favorite votes.  

Hybrid suffruticosa.  Purple.  Large, double bloom form.  Height of up to 30" (up to 75 cm).   Roger F. Anderson (1992).

3 favorite votes.  

Hybrid / Species crosses.  Coral-pink.  Narrow central petaloids marked with yellow.  Japanese (anemone, imperial) bloom form.  Early.  USDA zone 2a and warmer.   Lyman D. Glasscock (1935).

3 favorite votes.  

Hybrid / Species crosses.  Rose-red.  Moderate, spicy fragrance.  Medium, full, bomb bloom form.  Height of up to 32" (up to 80 cm).   Don Hollingsworth (1975).

3 favorite votes.  

Hybrid / Species crosses.  Dark red, yellow center.  Semi-double bloom form.  Early.   Edward Auten, Jr. (1946).

3 favorite votes.  

Hybrid lactiflora.  Rose-red.  Double bloom form.  USDA zone 2a and warmer.   BRAND (1918).

3 favorite votes.  

Hybrid lactiflora.  Light yellow.  Double bloom form.   William Henry Krekler (1965).

3 favorite votes.  

Hybrid suffruticosa.   E. H. Krelage & Zoon (1867).

3 favorite votes.  

Hybrid lactiflora.   George E. Winchell (1941).

3 favorite votes.  

Hybrid lactiflora.  Pink, lilac shading.  Medium to large, double bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 47" (up to 120 cm).   Col. Jesse C. Nicholls (1964).

3 favorite votes.  

Hybrid suffruticosa.   Baumann frères / Gebrüder Baumann (1836).

3 favorite votes.  

Hybrid lactiflora.  Dark red.  Semi-double bloom form.  Late.  USDA zone 2a and warmer.  
Height: up to 33" (up to 85cm).   Edward Auten, Jr. (1957).

3 favorite votes.  

Hybrid Lutea, Tree peony.  Deep pink, darker flares.  Moderate fragrance.  Semi-double bloom form.  USDA zone 6b and warmer.   Nassos Daphnis (1972).

3 favorite votes.  

Hybrid lactiflora.   Edward Auten, Jr. (1933).

3 favorite votes.  

Hybrid / Species crosses.  Dark red, dark brown shading.  Mohagony-red.  Semi-double bloom form.   Prof. Arthur Percy Saunders (1925).

3 favorite votes.  

Hybrid / Species crosses.  Light pink, light yellow center.  None / no fragrance.  Large, double bloom form.  Height of up to 26" (up to 65 cm).   Ben Gilbertson (1974).

3 favorite votes.  

Hybrid lactiflora.  Light pink.  Double bloom form.  Mid-to-late.  Height of up to 38" (up to 95 cm).   Eugene H. Lins (1939).

3 favorite votes.  

Hybrid suffruticosa, Tree peony.  Flesh pink, white shading, deep rose at base.  Mild fragrance.  Large, semi-double bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 4¼' (up to 130 cm).   Unknown Japanese Breeder(s) (1927).

3 favorite votes.