Hybrid suffruticosa, Tree peony.  Crimson, scarlet shading, white edges, yellow undertones.  Large, single to semi-double bloom form.   Unknown Japanese Breeder(s) (1893).

4 favorite votes.  

Hybrid lactiflora.  White.  Large bloom form.  USDA zone 2a and warmer.   Alonzo B. Franklin.

4 favorite votes.  

Hybrid lactiflora.  Scarlet.  Double, bomb bloom form.  Early.  Height of 2' to 3' (60 to 90 cm).   Albert Niva (1999).

4 favorite votes.  

Hybrid / Species crosses.  Red.  Moderate fragrance.  Large, double bloom form.  Mid-to-late.  USDA zone 2a and warmer.  Height of up to 28" (up to 70 cm).   Edward Auten, Jr. (1933).

4 favorite votes.  

Hybrid lactiflora.  Deep pink, yellow center.  Single bloom form.   Unknown breeder.

4 favorite votes.  

Hybrid suffruticosa.   Unknown Japanese Breeder(s) (1931).

4 favorite votes.  

Hybrid lactiflora.  Salmon-pink, shading.  Large, double bloom form.   George Hollis (1907).

4 favorite votes.  

Hybrid lactiflora.  Pink, silver(y) highlights.  Strong, sweet fragrance.  Large, double, flat bloom form.  Midseason.  USDA zone 2a and warmer.  Height of up to 26" (up to 65 cm).   William Henry Krekler (1958).

4 favorite votes.  

Hybrid / Species crosses.  Very dark glossy red with a few yellow markings.  Medium bloom form.   Edward Auten, Jr. (1946).

4 favorite votes.  

Hybrid lactiflora.  Light pink, cream undertones, ages to white .  Strong, medicinal fragrance.  Large, single to semi-double, cupped, lotus bloom form.  Prolific, midseason.  
Height: up to 35" (up to 90cm).   Philippe-Victor Verdier (1892).

4 favorite votes.  

Hybrid lactiflora.   Jacques Calot (1856).

4 favorite votes.  

Hybrid lactiflora.   Darwin M. Andrews (1925).

4 favorite votes.  

Hybrid lactiflora.  Light pink.  Blush.  Double, rose bloom form.  Late.   Hans Peter Sass (1937).

4 favorite votes.  

Hybrid suffruticosa, Tree peony.  Light pink, dark red flares.  Large, semi-double, cupped bloom form.  Early.  Height of up to 4' 11" (up to 150 cm).   John W. & Dot M. McFarlane (1991).

4 favorite votes.  

Hybrid lactiflora.  Dark red, purple shading.  Double bloom form.  USDA zone 2a and warmer.   Unknown Chinese Breeder(s).

4 favorite votes.  

Hybrid lactiflora.  Cream.  Large, single bloom form.   William Henry Krekler (1977).

4 favorite votes.  

Hybrid lactiflora.  Crimson.  Medium bloom form.  Early.   John F. Rosenfield or Rosefield (1916).

4 favorite votes.  

Hybrid lactiflora.  Pink.  Double bloom form.  USDA zone 2a and warmer.   Hans Peter Sass (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.  Light pink, lavender shading.  None to mild fragrance.  Medium to large, double bloom form.  Late.  Height of up to 28" (up to 70 cm).   Roy G. Klehm (1995).

4 favorite votes.  

Intersectional Hybrid / Itoh.  Yellow, red flares.  Large, double bloom form.  Midseason.   Toichi Itoh (1954).

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 suffruticosa, Tree peony.  White.  Medium, semi-double to double bloom form.  Early.  USDA zone 6b and warmer.   Unknown Japanese Breeder(s) (1919).

4 favorite votes.