Hybrid lactiflora.  White.  Double bloom form.  USDA zone 2a and warmer.   Walter J. Guille (1928).

5 favorite votes.  

Hybrid lactiflora.  Light pink.  Yellow collar.  Large, double bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   Hans Peter Sass (1930).

5 favorite votes.  

Hybrid lactiflora.  White, salmon-pink shading, rose-pink center, white center.  Large, double, rose bloom form.  Midseason.  USDA zone 2a and warmer.   François-Félix Crousse (1840-1925) (1885).

5 favorite votes.  

Hybrid / Species crosses, Hybrid lactiflora.  Deep pink, yellow center, ages to lighter.  Light red.  Medium to large, semi-double, Japanese (anemone, imperial) bloom form.  USDA zone 2a and warmer.   Walter Z. Mains (1956).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Small, single bloom form.  Midseason.   Berneche (1894).

5 favorite votes.  

Hybrid lactiflora.   Julian L. Janus.

5 favorite votes.  

Hybrid suffruticosa, Tree peony.  Violet or violet-red.  Variegated foliage.  Semi-double, Japanese (anemone, imperial) bloom form.   Unknown Japanese Breeder(s) (1895).

5 favorite votes.  

Unknown.  USDA zone 2a and warmer.  

5 favorite votes.  

Hybrid Lutea, Tree peony.  Yellow.   William J. Seidl (2001).

5 favorite votes.  

Hybrid lactiflora.  White, golden-yellow center.  Moderate fragrance.  Single, Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Millet & Son (1928).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Large, double bloom form.  USDA zone 2a and warmer.   Alonzo B. Franklin.

5 favorite votes.  

Hybrid / Species crosses.  Deep pink.  Double bloom form.  Early.   Lyman D. Glasscock (1964).

5 favorite votes.  

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

5 favorite votes.  

Hybrid lactiflora.  Pink.  Mild fragrance.  Full, rose bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Auguste Dessert (1922).

5 favorite votes.  

Hybrid lactiflora.  Deep pink, cream center.  Double bloom form.  Height of up to 39" (up to 100 cm).   Heinz Klose (1972).

5 favorite votes.  

Hybrid lactiflora.  White.  Large, double, cupped bloom form.  Very early.  USDA zone 2a and warmer.   Edouard Doriat (1924).

5 favorite votes.  

Hybrid lactiflora.   James Pillow (1924).

5 favorite votes.  

Hybrid lactiflora.  White, yellow center.  Single bloom form.  Midseason.  Height of up to 3' (up to 90 cm).   Abraham Newhouse (1939).

5 favorite votes.  

Hybrid lactiflora.  Crimson - pink, cream undertones, silver(y) edges, salmon-pink center.  Tyrian rose. Violet-pink center.  Moderate fragrance.  Medium, double, bomb bloom form.  Midseason.  USDA zone 2a and warmer.   Modeste Guérin (1850).

5 favorite votes.  

Hybrid / Species crosses.  Red.  Small, single bloom form.  Early.  Height of 2' to 25" (60 to 65 cm).   Robert William Tischler (1995).

5 favorite votes.  

Hybrid / Species crosses.  Red.  Single bloom form.  Height of up to 29" (up to 75 cm).   William Henry Krekler (1978).

5 favorite votes.  

Hybrid lactiflora.  Red.  Semi-double bloom form.  USDA zone 2a and warmer.   Edward Auten, Jr. (1951).

5 favorite votes.  

Hybrid / Species crosses.  Red, yellow center.  Semi-double bloom form.  Mid-to-late.  Height of 28" to 3' (70 to 90 cm).   Don Hollingsworth (1976).

5 favorite votes.  

Hybrid lactiflora.  Pink, fuchsia / magenta shading, silver(y) edges.  Double bloom form.  Late midseason.   Col. Jesse C. Nicholls (1956).

5 favorite votes.