Hybrid / Species crosses.  Red, light yellow center.  None / no fragrance.  Large, single bloom form.  Early-to-mid.  Height of up to 3' (up to 90 cm).   Don Hollingsworth (1980).

8 favorite votes.  

Hybrid lactiflora.  Light pink, darker flares.  Single bloom form.  USDA zone 2a and warmer.   William J. Seidl (2001).

8 favorite votes.  

Hybrid lactiflora.  Rose-pink, deep pink shading, lilac highlights, crimson flecks.  Strong fragrance.  Very large, full, bomb, flat bloom form.  Late.  USDA zone 2a and warmer.  Height of 37" (95 cm).   François-Félix Crousse (1840-1925) (1893).

8 favorite votes.  

Hybrid lactiflora.  Red.  None / no fragrance.  Large, full bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   D. Steve Varner (1970).

8 favorite votes.  

Hybrid lactiflora.  

8 favorite votes.  

Hybrid Lutea, Tree peony.  Red, golden-yellow undertones, dark red flares.  Semi-double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 3' to 4' (90 to 120 cm).   Prof. Arthur Percy Saunders (1939).

8 favorite votes.  

Hybrid lactiflora.  Cream, yellow center.  Moderate fragrance.  Single, Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  Height of 30" to 3' (75 to 90 cm).   Roy G. Klehm (1968).

8 favorite votes.  

Hybrid / Species crosses.  Cream, lavender highlights.  Strong fragrance.  Single bloom form.  Early.  USDA zone 2a and warmer.   Silvia Saunders (1986).

8 favorite votes.  

Hybrid lactiflora.  Rose-pink, cream center.  None to mild fragrance.  Large, Japanese (anemone, imperial) bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Henry E. Sass (1935).

8 favorite votes.  

Fernleaf Hybrid, Hybrid / Species crosses, Species.  Red.  Small, double bloom form.  Early.  USDA zone 2a and warmer.  Height of 8" to 1' (20 to 30 cm).   Unknown breeder (1720).

8 favorite votes.  

Hybrid lactiflora.  White, yellow center.  Large, double bloom form.  Late.  USDA zone 2a and warmer.  Height of 25" to 32" (65 to 80 cm).   Hans Peter Sass (1930).

8 favorite votes.  

Hybrid / Species crosses.  Light pink, yellow center.  Moderate fragrance.  Single, Japanese (anemone, imperial) bloom form.  Midseason.  Height of up to 30" (up to 75 cm).   Don Hollingsworth (1980).

8 favorite votes.  

Hybrid Lutea, Tree peony.  Butter-yellow, pink shading, crimson flares.  Medium, single to semi-double bloom form.  Late.  USDA zone 2a and warmer.   Prof. Arthur Percy Saunders (1944).

8 favorite votes.  

Hybrid lactiflora.   Walter J. Guille (1952).

8 favorite votes.  

Hybrid suffruticosa, Tree peony.  Deep pink, purple flares.  Mild fragrance.  Medium, semi-double, rose bloom form.  Midseason.  USDA zone 2a and warmer.  Height of 5' to 7' (150 to 215 cm).  Width of 3' (90 cm). Unknown Chinese Breeder(s) (1969).

8 favorite votes.  

Hybrid lactiflora.  Deep pink, white center, rose-pink shading.  Moderate fragrance.  Double bloom form.  Mid-to-late.  Height of up to 35" (up to 90 cm).   Kelway (and Son).

8 favorite votes.  

Hybrid / Species crosses.  Lemon-yellow.  Semi-double to double bloom form.  Midseason.  Height of up to 32" (up to 80 cm).   David Reath (1980).

8 favorite votes.  

Hybrid / Species crosses.  Apricot - buff, crimson flares.  Single, cupped bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 3' (90 cm).   Prof. Arthur Percy Saunders (1949).

8 favorite votes.  

Hybrid lactiflora.  Pink, ages to cream.  Moderate fragrance.  Large, double bloom form.  Late.  USDA zone 6b and warmer.  Height of up to 39" (up to 100 cm).   Kersbergen (1910).

8 favorite votes.  

Hybrid lactiflora.   Walter J. Guille.

8 favorite votes.  

Herbaceous species, Species.  Yellow to cream.  Large, single bloom form.  USDA zone 2a and warmer.  

8 favorite votes.  

Hybrid lactiflora.  White, cherry-red stripes.  Cactus-dahlia-style.  Moderate fragrance.  Semi-double bloom form.  Mid-to-late.  Height of up to 28" (up to 70 cm).   Roy G. Klehm (1996).

8 favorite votes.  

Hybrid suffruticosa.   Unknown breeder (1896).

8 favorite votes.  

Intersectional Hybrid / Itoh.  Light yellow, red flares.  Medium, semi-double bloom form.  Mid.  Height of up to 30" (up to 75 cm).   E.L. "Roy" Pehrson (1981).

8 favorite votes.