Hybrid lactiflora.  White or cream.  Rose bloom form.  Prolific.   Alonzo B. Franklin (1920).

3 favorite votes.  

Hybrid rockii.  White, dark red undertones.  Moderate fragrance.  Full, crown bloom form.   Chen Dezhong (1994).

3 favorite votes.  

Hybrid lactiflora.  Cream.  Moderate fragrance.  Double bloom form.  Mid.  USDA zone 2a and warmer.  Height of up to 3' (up to 90 cm).   Roy G. Klehm (1980).

3 favorite votes.  

Hybrid lactiflora.   Kelway (and Son).

3 favorite votes.  

Intersectional Hybrid / Itoh.  Orange - yellow, dark red flares, ages to cream .  Single bloom form.  USDA zone 2a and warmer.  Height of up to 32" (up to 80 cm).   Roger F. Anderson (1988).

3 favorite votes.  

Hybrid lactiflora.  Light yellow, yellow center, ages to white .  Red stigmas.  Mild fragrance.  Medium, single, cupped bloom form.  Very early.  USDA zone 2a and warmer.  Height of up to 35" (up to 90 cm).   Don Hollingsworth (1980).

3 favorite votes.  

Hybrid lactiflora.  Rose-pink, ages to light pink .  Mild to strong, spicy fragrance.  Large, double bloom form.  Early-to-mid.  USDA zone 2a and warmer.   Jacques Calot (1860).

3 favorite votes.  

Hybrid lactiflora.  Rose-pink, lighter center, fuchsia / magenta shading.  Japanese (anemone, imperial) bloom form.  Midseason.  USDA zone 2a and warmer.   Col. Jesse C. Nicholls (1965).

3 favorite votes.  

Hybrid lactiflora.  Red.  Single bloom form.  Mid-to-late.  Height of up to 39" (up to 100 cm).   Millet & Son (1924).

3 favorite votes.  

Hybrid lactiflora.  White.  Mild fragrance.  Double bloom form.  Midseason.  Height of up to 30" (up to 75 cm).   McCrae (1993).

3 favorite votes.  

Hybrid lactiflora.   Kelway (and Son) (1916).

3 favorite votes.  

Hybrid / Species crosses.  White, golden-yellow center.  Moderate fragrance.  Single bloom form.  Late midseason.  Height of up to 28" (up to 70 cm).   Hermann Krupke.

3 favorite votes.  

Hybrid / Species crosses.  Deep pink.  Small, semi-double to double bloom form.  Midseason.  Height of up to 32" (up to 80 cm).   Frank E. Moots (1962).

3 favorite votes.  

Hybrid rockii.  White, purple flares.  Double, crown bloom form.   Chen Fuhui (2005).

3 favorite votes.  

Hybrid lactiflora.   Edward Auten, Jr. (1945).

3 favorite votes.  

Species, Tree peony.  Copper.  Small, single bloom form.  Height of up to 32" (up to 80 cm).  

3 favorite votes.  

Hybrid suffruticosa.  White, purple flares.  Single to semi-double bloom form.   Captain James Pendergrass (1802).

3 favorite votes.  

Hybrid lactiflora.  Deep pink.  Double bloom form.  Late.  Height of up to 39" (up to 100 cm).   Heinz Klose (1983).

3 favorite votes.  

Hybrid Lutea.  Cream, orange-red shading, pink shading.  Single bloom form.   William J. Seidl (2011).

3 favorite votes.  

Hybrid lactiflora.  Red.  Japanese (anemone, imperial) bloom form.  Midseason.   Edward Auten, Jr. (1961).

3 favorite votes.  

Hybrid lactiflora.  White, yellow center.  Moderate fragrance.  Medium, bomb, Japanese (anemone, imperial) bloom form.  Height of up to 40" (up to 100 cm).   Don Hollingsworth (2005).

3 favorite votes.  

Hybrid lactiflora.  Dark red.  Japanese (anemone, imperial) bloom form.  Late.  USDA zone 2a and warmer.   Robert William Tischler (1972).

3 favorite votes.  

Hybrid lactiflora.  White, light pink shading.  Double, crown bloom form.  Late.  Height of up to 27" (up to 70 cm).   Roy G. Klehm (1999).

3 favorite votes.  

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

3 favorite votes.