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 / 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.  Light pink.   Jacques Calot (1869).

5 favorite votes.  

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

5 favorite votes.  

Hybrid lactiflora.  Pink.  Single bloom form.  USDA zone 2a and warmer.   Peter Barr.

5 favorite votes.  

Hybrid suffruticosa, Tree peony.  Light pink, dark red flares, lavender highlights.  Large, double bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 4' (120 cm).   Unknown French Breeder(s) (1899).

5 favorite votes.  

Unknown.  USDA zone 2a and warmer.  

5 favorite votes.  

Hybrid lactiflora.   Julian L. Janus.

5 favorite votes.  

Hybrid / Species crosses.  Deep pink, white streaks, stripes, flecks, yellow center.  Semi-double, ruffled bloom form.   Lyman D. Glasscock (1950).

5 favorite votes.  

Hybrid Lutea.  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 lactiflora.  Deep bright red or crimson.  Mild to strong, rose fragrance.  Full, rose bloom form.  Prolific, Late.   John F. Rosenfield or Rosefield (1925).

5 favorite votes.  

Hybrid lactiflora.  Rose-pink.  Moderate fragrance.  Large, double bloom form.  Early-to-mid.   Peter Barr (1860).

5 favorite votes.  

Hybrid / Species crosses.  Orange-pink, ages to apricot .  Strong, spicy, sweet fragrance.  Medium, double, bomb bloom form.  Midseason.  Height of up to 26" (up to 65 cm).   Don Hollingsworth (1980).

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.  

Fernleaf Hybrid, Hybrid / Species crosses.  Red.  Strong fragrance.  Medium to large, single bloom form.  Early.  USDA zone 2a and warmer.  Height of 2' to 30" (60 to 75 cm).   Prof. Arthur Percy Saunders (1953).

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.  

Herbaceous species, Species.  White.  Medium, single, cupped bloom form.  Early.  

5 favorite votes.  

Hybrid lactiflora.  Pink, ages to light pink .  Double bloom form.  Midseason.   Eugene H. Lins (1967).

5 favorite votes.  

Hybrid lactiflora.   E. H. Krelage & Zoon (1917).

5 favorite votes.  

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

5 favorite votes.