Hybrid lactiflora.  Red.  Mild fragrance.  Large, single bloom form.  USDA zone 2a and warmer.  Height of 25" to 27" (65 to 70 cm).   Gilbert H. Wild & Son (1956).

5 favorite votes.  

Hybrid / Species crosses.  Red.  Mild fragrance.  Small, single bloom form.  Very early.  USDA zone 2a and warmer.  Height of 20" to 22" (50 to 55 cm).   Prof. Arthur Percy Saunders (1951).

5 favorite votes.  

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

5 favorite votes.  

Tree peony.  Red.  Mild fragrance.  Crown bloom form.  USDA zone 2a and warmer.  Height of 5' (150 cm).  

5 favorite votes.  

Hybrid suffruticosa.   Unknown Japanese Breeder(s) (1897).

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.  Pink.  Large, double bloom form.  Mid.  USDA zone 2a and warmer.  Height of 32" (80 cm).   Alonzo B. Franklin (1944).

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.  Pink.  Double bloom form.  Midseason.   John Richardson (1887).

5 favorite votes.  

Hybrid / Species crosses.  Salmon-pink, cream shading.  Semi-double, flat bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 30" (up to 75 cm).   David Reath (1974).

5 favorite votes.  

Hybrid lactiflora.  Pink to deep pink, darker streaks, stripes, flecks, cream streaks, stripes, flecks.  Cactus-dahlia-style.  None / no fragrance.  Small to medium bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 28" to 30" (70 to 75 cm).   William Henry Krekler (1999).

5 favorite votes.  

Hybrid suffruticosa.  Violet-red.  Large, double bloom form.   Adrien Sénéclauze (1889).

4 favorite votes.  

Hybrid lactiflora.   Berneche (1920).

4 favorite votes.  

Hybrid lactiflora.  Pink.  Double, bomb bloom form.   Unknown Chinese Breeder(s) (1829).

4 favorite votes.  

Hybrid lactiflora.  Bright crimson.  Moderate, midseason.   John F. Rosenfield or Rosefield (1908).

4 favorite votes.  

Hybrid lactiflora.  Light pink, salmon-pink shading.  Moderate fragrance.  Double bloom form.  Late.  USDA zone 2a and warmer.   Victor Lemoine & Sons (1927).

4 favorite votes.  

Hybrid rockii, Tree peony.  Mauve, white shading, black flares.  Mild fragrance.  Medium, single, lotus bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 7' (up to 215 cm).   Chen Dezhong (1985).

4 favorite votes.  

Tree peony.  Red.  USDA zone 2a and warmer.  

4 favorite votes.  

Hybrid lactiflora.   D.M. Andrews (1932).

4 favorite votes.  

Hybrid lactiflora.   D.M. Andrews (1932).

4 favorite votes.  

Hybrid lactiflora.  White.  Japanese (anemone, imperial) bloom form.  USDA zone 2a and warmer.   J.R. Mann (1936), Julius J. Van Steen (1936).

4 favorite votes.  

Hybrid lactiflora.  Rose-pink, lilac shading, cream center, crimson flecks.  Lilac-pink bonnet.  Mild fragrance.  Very large, full, cupped bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 32" to 33" (80 to 85 cm).   Jacques Calot (1857), Modeste Guérin (1842).

4 favorite votes.  

Hybrid lactiflora.  Lavender - pink.  Strong fragrance.  Large, Japanese (anemone, imperial) bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   William Henry Krekler (1965).

4 favorite votes.  

Hybrid lactiflora.  Cerise or deep pink.  Large, single bloom form.  Prolific.   Kelway (and Son).

4 favorite votes.