Japanese, Tree peony.  Red.  Double bloom form.  USDA zone 2a and warmer.   Unknown Japanese Breeder(s).

6 favorite votes.  

Hybrid / Species crosses.  Light pink, ages to white .  Mild fragrance.  Single bloom form.  Early.  USDA zone 2a and warmer.   Leighton (1954).

6 favorite votes.  

Hybrid lactiflora.  Light pink.  Mild fragrance.  Large, double, rose bloom form.  Mid-to-late.  Height of up to 35" (up to 90 cm).   Walter Z. Mains (1955).

6 favorite votes.  

Hybrid suffruticosa, Tree peony.  Red, purple highlights.  Medium to large, double, hundred petal bloom form.  Midseason.  USDA zone 2a and warmer.   Unknown Chinese Breeder(s) (1968).

6 favorite votes.  

Hybrid lactiflora.   Pfeiffer Nursery (1932).

6 favorite votes.  

Hybrid lactiflora.  Scarlet to dark red.  Double, rose bloom form.  Midseason.  USDA zone 6b through 9b (default).   W. Warnaar (1905).

6 favorite votes.  

Hybrid / Species crosses.  Dark red, white streaks, stripes, flecks.  Single bloom form.  Midseason.  Height of up to 2' (up to 60 cm).   Nathan Rudolph (1963).

6 favorite votes.  

Hybrid lactiflora.  Dark red.  Strong fragrance.  Early.  USDA zone 2a and warmer.  

6 favorite votes.  

Hybrid lactiflora.  Rose-pink.  Center petals curled.  Mild to strong, sweet fragrance.  Double bloom form.   Kelway (and Son).

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 lactiflora.  Crimson, lavender highlights.  Yellow stamens.  None to mild fragrance.  Very large, double bloom form.  Midseason.   Auguste Dessert (1915).

5 favorite votes.  

Hybrid lactiflora.  White, light pink undertones.  Mild fragrance.  Double bloom form.  Midseason.  Height of up to 32" (up to 80 cm).   Roy G. Klehm (1986).

5 favorite votes.  

Hybrid lactiflora.  Rose-red.  Single bloom form.  USDA zone 2a and warmer.   Auguste Dessert (1884).

5 favorite votes.  

Hybrid lactiflora.   Hans Peter Sass (1924).

5 favorite votes.  

Hybrid / Species crosses.  White.  Mild fragrance.  Single bloom form.  Early.  USDA zone 2a and warmer.  Height of 4' (120 cm).   Prof. Arthur Percy Saunders (1941).

5 favorite votes.  Average rating: EXCELLENT.  

Hybrid suffruticosa.  Crimson, darker flares, yellow center.  Single bloom form.   Philipp Von Siebold (1844).

5 favorite votes.  

Tree peony.  Red.  Rose bloom form.  USDA zone 2a and warmer.  

5 favorite votes.  

Hybrid lactiflora.  Light pink, rose-pink shading.  Mild to strong, sweet fragrance.  Large, double, rose bloom form.  Mid-to-late.  Height of up to 33" (up to 85 cm).   George C. Thurlow (1921).

5 favorite votes.  

Hybrid lactiflora.  Light pink.  Moderate fragrance.  Large, Japanese (anemone, imperial) bloom form.  Early-to-mid.  Height of up to 33" (up to 85 cm).   Auguste Dessert (1921).

5 favorite votes.  

Hybrid lactiflora.  Cream, yellow center.  Cluster-flowered.  None to mild fragrance.  Medium, semi-double, rose bloom form.  Midseason.  Height of up to 32" (up to 80 cm).   François-Félix Crousse (1840-1925) (1888).

5 favorite votes.  

Hybrid, Hybrid Lutea, Tree peony.  Light yellow, buff shading, carmine-red flares.  Large, single to semi-double, ruffled bloom form.  USDA zone 2a and warmer.   Victor Lemoine (1909).

5 favorite votes.  

Hybrid / Species crosses.  Red, orange-red shading.  Moderate fragrance.  Single to semi-double, ruffled bloom form.  Early-to-mid.  USDA zone 2a and warmer.  Height of 3' (90 cm).   David Reath (1981).

5 favorite votes.  

Hybrid / Species crosses.  Cherry-red.  Semi-double bloom form.  Late.   Prof. Arthur Percy Saunders (1934).

5 favorite votes.  

Hybrid lactiflora.  Pink.  Japanese (anemone, imperial) bloom form.  USDA zone 2a and warmer.   William Brewster (1952), William Brown (1952).

5 favorite votes.