Hybrid lactiflora.  Red.  Large, very double bloom form.  Midseason.  USDA zone 2a and warmer.   Gilbert H. Wild & Son (1964).

4 favorite votes.  

Hybrid Lutea, Tree peony.  Yellow, crimson edges.  Single bloom form.  USDA zone 2a and warmer.   Prof. Arthur Percy Saunders (1948).

4 favorite votes.  

Hybrid lactiflora.  Light pink.  Double bloom form.  Midseason.  USDA zone 2a and warmer.   Arthur L. Murawska (1943).

4 favorite votes.  

Hybrid lactiflora.  Red.  Medium, double bloom form.  Midseason.   Robert William Tischler (1999).

4 favorite votes.  

Hybrid / Species crosses.  Red.  Single bloom form.   William Henry Krekler (1977).

4 favorite votes.  

Hybrid lactiflora.  Deep pink, mauve shading.  Mild fragrance.  Large, double, rose bloom form.  Late.  USDA zone 2a and warmer.  Height of up to 39" (up to 100 cm).   Col. Jesse C. Nicholls (1964).

4 favorite votes.  

Hybrid / Species crosses.   Prof. Arthur Percy Saunders (1925).

4 favorite votes.  

Hybrid lactiflora.  White, pink center.  Mild fragrance.  Double, rose bloom form.  Mid-to-late.  Height of 30" to 34" (75 to 85 cm).   Roger F. Anderson (1987).

4 favorite votes.  

Hybrid lactiflora.   Kelway (and Son) (1929).

4 favorite votes.  

Hybrid lactiflora.   Peter Barr.

4 favorite votes.  

Hybrid lactiflora.   George E. Winchell (1941).

4 favorite votes.  

Hybrid lactiflora.  Deep pink, lemon-yellow center.  Medium bloom form.  Height of up to 3' (up to 90 cm).   Myron D. Bigger (1962).

4 favorite votes.  

Hybrid suffruticosa.  White.  Very large bloom form.  

4 favorite votes.  

Hybrid lactiflora.  Pink, yellow center.  Single bloom form.  Early.  USDA zone 2a and warmer.  Height of 38" (95 cm).   George C. Thurlow (1922).

4 favorite votes.  

Hybrid Lutea.  Cream, dark red shading, purple flares.  Moderate fragrance.  Very large, single to semi-double, flat bloom form.  Early.  Height of 39" to 4' 11" (100 to 150 cm).   William J. Seidl (1995).

4 favorite votes.  

Hybrid lactiflora.  Salmon-pink, light pink shading, rose-pink center.  Very large, double bloom form.  Late.  Height of up to 35" (up to 90 cm).   Kelway (and Son) (1905).

4 favorite votes.  

Hybrid / Species crosses.  Light yellow.  Red stigmas.  Medium, single, flat bloom form.  Very early.  Height of up to 28" (up to 70 cm).   Roy G. Klehm (1999).

4 favorite votes.  

Hybrid lactiflora.   John F. Rosenfield or Rosefield (1934).

4 favorite votes.  

Hybrid lactiflora.  Light pink.  Cream collar.  Mild, sweet fragrance.  Large, double bloom form.  Midseason.   Betscher (1920).

4 favorite votes.  

Tree peony.  Pink.  Large, semi-double bloom form.  Mid.  USDA zone 2a and warmer.   Unknown Japanese Breeder(s).

4 favorite votes.  

Hybrid lactiflora.  White, cherry-red streaks, stripes, flecks.  Twisted and fluted petals.  Mild fragrance.  Small to medium, single bloom form.  Early.  Height of up to 28" (up to 70 cm).   Roy G. Klehm (1995).

4 favorite votes.  

Hybrid / Species crosses.  Dark red.  Very double, ruffled bloom form.  Early.   Edward Auten, Jr. (1948).

4 favorite votes.  

Hybrid lactiflora.   Edward Auten, Jr. (1957).

4 favorite votes.  

Hybrid lactiflora.  White.  Mild fragrance.  Medium, semi-double to double bloom form.  Midseason.  Height of up to 26" (up to 65 cm).   Roy G. Klehm (2000).

4 favorite votes.