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 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.  

Intersectional Hybrid / Itoh.  White, lavender flares.  None to mild fragrance.  Semi-double bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 2' (up to 60 cm).   Roger F. Anderson (1984).

8 favorite votes.  

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

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.  Cerise, purple shading.  Mild fragrance.  Medium to large, double, Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.  
Height: up to 35" (up to 90cm).   Jacques Calot (1863).

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.  

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).   G. H. Kersbergen (1910).

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

8 favorite votes.  

Hybrid / Species crosses.   Julian L. Janus.

7 favorite votes.  

Hybrid lactiflora.  Deep pink.  Moderate fragrance.  Double, bomb bloom form.  Midseason.  Height of up to 3' (up to 90 cm).   George E. Winchell (1946).

7 favorite votes.  

Hybrid suffruticosa.  Cream, light pink shading.  Double bloom form.  Midseason.   Sir Peter Smithers (2006).

7 favorite votes.  

Hybrid suffruticosa, Tree peony.  Blush pink, salmon-pink highlights.  Very large, full, bomb bloom form.  Early.   Adrien Sénéclauze (1889).

7 favorite votes.  

Hybrid lactiflora.   Walter J. Guille.

7 favorite votes.  

Hybrid lactiflora.  Deep pink to red, lilac highlights, butter-yellow edges.  Very large, Japanese (anemone, imperial) bloom form.  Midseason.  Height of up to 47" (up to 120 cm).   Michel Rivière (1988).

7 favorite votes.  

Hybrid lactiflora.   Berneche (1924).

7 favorite votes.  

Hybrid lactiflora.   Berneche.

7 favorite votes.  

Hybrid lactiflora.  Light pink, yellow center, ages to white .  Strong fragrance.  Large, semi-double bloom form.  Early-to-mid.  USDA zone 6b through 9b (default).  Width of 4' (120 cm). J.R. Mann (1936), Julius J. Van Steen (1936).

7 favorite votes.  

Hybrid lactiflora.   Peter Barr.

7 favorite votes.  

Species, Tree peony.  Rose-pink.  Large, single bloom form.  USDA zone 2a and warmer.  Height of up to 4' 11" (up to 150 cm).  

7 favorite votes.  

Hybrid suffruticosa.  Light pink.  Large, semi-double bloom form.   Unknown Japanese Breeder(s) (1893).

7 favorite votes.