Hybrid lactiflora.  Red.  Large, very double bloom form.  Midseason.  USDA zone 2a and warmer.   Gilbert H. Wild & Son (1964).

4 favorite votes.  

Hybrid lactiflora.   Unknown New Zealand Breeder(s).

4 favorite votes.  

Hybrid Lutea, Tree peony.  Yellow, crimson edges.  Single bloom form.  USDA zone 2a and warmer.   Prof. Arthur Percy Saunders (1948).

4 favorite votes.  

Hybrid lactiflora.  Light pink.  Double bloom form.  Midseason.  USDA zone 2a and warmer.   Arthur L. Murawska (1943).

4 favorite votes.  

Hybrid lactiflora.  Red.  Medium, double bloom form.  Midseason.   Robert William Tischler (1999).

4 favorite votes.  

Hybrid / Species crosses.  Red.  Single bloom form.   William Henry Krekler (1977).

4 favorite votes.  

Hybrid suffruticosa.  Pink, lilac shading, darker undertones.  Mild fragrance.  Double, Japanese (anemone, imperial) bloom form.  Early.  USDA zone 2a and warmer.   Unknown Chinese Breeder(s) (1973).

4 favorite votes.  

Hybrid / Species crosses.   Prof. Arthur Percy Saunders (1925).

4 favorite votes.  

Hybrid lactiflora.  White, pink center.  Mild fragrance.  Double, rose bloom form.  Mid-to-late.  Height of 30" to 34" (75 to 85 cm).   Roger F. Anderson (1987).

4 favorite votes.  

Hybrid lactiflora.   George E. Winchell (1941).

4 favorite votes.  

Hybrid lactiflora.   Auguste Dessert (1910).

4 favorite votes.  

Hybrid lactiflora.  Deep pink.  Double bloom form.  Height of up to 30" (up to 75 cm).   Myron D. Bigger (1961).

4 favorite votes.  

Hybrid / Species crosses.  Light pink.  Single bloom form.  Early.  USDA zone 2a and warmer.  Height of up to 28" (up to 70 cm).   William Henry Krekler (1978).

4 favorite votes.  

Intersectional Hybrid / Itoh.  Yellow.  Mild, spicy fragrance.  Large, single bloom form.  Midseason.  Height of 16" to 2' (40 to 60 cm).   Roger F. Anderson (2006).

4 favorite votes.  

Hybrid lactiflora.  Salmon-pink, light pink shading, rose-pink center.  Very large, double bloom form.  Late.  Height of up to 35" (up to 90 cm).   Kelway (and Son) (1905).

4 favorite votes.  

Hybrid lactiflora.  Mauve-rose, crimson flecks.  Mild to strong, rose fragrance.  Large, double, rose bloom form.  Late midseason.  USDA zone 2a and warmer.   Kelway (and Son) (1903).

4 favorite votes.  

Hybrid suffruticosa.  White.   Unknown Japanese Breeder(s) (1919).

4 favorite votes.  

Hybrid suffruticosa.  White, light pink shading.  Large, semi-double bloom form.  Mid-to-late.   Unknown Japanese Breeder(s).

4 favorite votes.  

Hybrid lactiflora.  White.  Double bloom form.  Midseason.   Unknown breeder (1926).

4 favorite votes.  

Tree peony.  Pink.  Large, semi-double bloom form.  Mid.  USDA zone 2a and warmer.   Unknown Japanese Breeder(s).

4 favorite votes.  

Intersectional Hybrid / Itoh.  Rose-pink, red flares, ages to lighter .  Small, single bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Chris Laning (1990).

4 favorite votes.  

Hybrid lactiflora.   Edward Auten, Jr. (1957).

4 favorite votes.  

Hybrid suffruticosa, Tree peony.  Purple - red, violet shading.  Large, double, rose, ruffled bloom form.  Midseason.  
Height: 4' to 5' (120 to 150cm).  Width: 3' to 4' (90 to 120cm).

4 favorite votes.  

Hybrid lactiflora.  White.  Mild fragrance.  Medium, semi-double to double bloom form.  Midseason.  Height of up to 26" (up to 65 cm).   Roy G. Klehm (2000).

4 favorite votes.