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

8 favorite votes.  

Hybrid lactiflora.  Light pink, cream center.  Strong, lemon fragrance.  Large, double bloom form.  Late.  USDA zone 2a and warmer.  Height of 16" to 20" (40 to 50 cm).   Victor Lemoine & Sons (1922).

8 favorite votes.  

Hybrid lactiflora.  Red, yellow center.  Large, single bloom form.  Very early.  USDA zone 2a and warmer.  Height of up to 39" (up to 100 cm).   Edward Auten, Jr. (1933).

8 favorite votes.  

Hybrid lactiflora.  Pink.  Mild to strong fragrance.  Small to medium, semi-double to double bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of 2' to 35" (60 to 90 cm).   Auguste Dessert (1920).

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 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 / Species crosses.  Red.  Single bloom form.  Early.  USDA zone 2a and warmer.  Height of 30" to 32" (75 to 80 cm).   Orville W. Fay (1962).

8 favorite votes.  Average rating: EXCELLENT.  

Hybrid lactiflora.  White, light yellow center.  Moderate fragrance.  Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 30" (up to 75 cm).   Carl G. Klehm (1959).

8 favorite votes.  

Hybrid lactiflora.  Rose-red or lilac-pink.  Prolific.   Modeste Guérin (1854).

8 favorite votes.  

Hybrid suffruticosa.  Pink.   Unknown Japanese Breeder(s) (1932).

8 favorite votes.  

Herbaceous species.  White, pink shading.  Single bloom form.  

8 favorite votes.  

Hybrid lactiflora.  Red.  Mild to strong fragrance.  Large, double bloom form.  Mid-to-late.  USDA zone 2a and warmer.  
Height: up to 35" (up to 90cm).   Ernest Flint Kelsey (1940).

8 favorite votes.  

Hybrid lactiflora.  White, golden-yellow center.  Large, single bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Archie M. Brand (1928).

8 favorite votes.  

Hybrid lactiflora.  Light pink, darker center.  Medium, full, crown bloom form.  Late midseason.  USDA zone 2a and warmer.   Jacques Calot (1861).

8 favorite votes.  

Herbaceous species, Species.  Red.  Citrus fragrance.  Single bloom form.  Early.  USDA zone 2a and warmer.  Height of 20" to 2' (50 to 60 cm).  

8 favorite votes.  

Herbaceous species, Species.  White, yellow center.  Mild fragrance.  Medium bloom form.  Early.  USDA zone 6a and warmer.  Height of 2' to 3' (60 to 90 cm).  

8 favorite votes.  

Herbaceous species, Species.  USDA zone 2a and warmer.  

8 favorite votes.  

Hybrid lactiflora.  Red.  Double bloom form.  

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 / Species crosses.  Red.  Large, single bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 38" (95 cm).   Elizabeth Glasscock Falk (1956), Lyman D. Glasscock (1956).

8 favorite votes.  

Hybrid lactiflora.  Dark red.  Semi-double to double bloom form.  Late midseason.   Edward Auten, Jr. (1931).

8 favorite votes.  

Hybrid lactiflora.  White.  Mild fragrance.  Double, bomb bloom form.   Alonzo B. Franklin.

8 favorite votes.