Viticella Group.  Red, yellow anthers.  Medium, single bloom form.  Late spring to midsummer, late summer to early autumn.  
Height: 35" to 47" (90 to 120cm).  

Viticella Group.  Pink, ages to deep pink .  None / no fragrance.  Medium, single bloom form.  Late spring to midsummer, early autumn.  USDA zone 5b through 9a.  
Height: 35" to 47" (90 to 120cm).  

Hybrid suffruticosa, Tree peony.  White.  Faintly blushed pink on first day of opened flower; prominent golden stamens.  Very large, semi-double to double bloom form.  Early-to-mid.  
Height: up to 4' (up to 120cm).  

Hybrid / Species crosses.  Apricot, pink flares, ages to cream .  Medium, very double, ruffled bloom form.  Midseason.  
Height: up to 26" (up to 65cm).  

Hybrid Gallica, Shrub.  Pink, white center, ages to light pink .  Mild fragrance.  Large, single (4-8 petals), cluster-flowered bloom form.  Prolific, once-blooming spring or summer.  
Height: 47" to 4'11" (120 to 150cm).  

Fernleaf Hybrid, Herbaceous species.  Light pink or coral-pink, lighter edges.  Rounded, slightly notched petals; prominent gold stamens surrounding light green carpels.  None / no fragrance.  Small, single, cupped bloom form.  Very early.  
Height: 14" to 18" (35 to 45cm).  

Hybrid / Species crosses.  Carmine-pink and rose-pink, lighter edges.  Petals twisted, fluted, with japped edges.  None / no fragrance.  Large, double, ruffled bloom form.  
Height: up to 34" (up to 85cm).  

Hybrid / Species crosses.  Carmine-pink.  Prominent gold stamens surrounding pale green carpels with pink stigmata.  Mild fragrance.  Medium, semi-double, rose, ruffled bloom form.  Midseason.  
Height: up to 32" (up to 80cm).  

Hybrid / Species crosses.  Vivid, satiny, unfading red.  Mint-green carpels.  None / no fragrance.  Medium, semi-double, rose, ruffled bloom form.  Midseason.  
Height: up to 37" (up to 95cm).  

Hybrid / Species crosses.  Coral-pink or apricot, ages to lighter .  Prominent gold stamens.  Mild to strong fragrance.  Medium to large, semi-double to double, ruffled bloom form.  Midseason.  
Height: up to 2' (up to 60cm).  

Species, Tree peony.  Green - yellow.  Prominent gold stamens.  Mild to strong fragrance.  Small, single, cupped bloom form.  Midseason.  
Height: up to 5'11" (up to 180cm).  

Hybrid suffruticosa.  Lilac-pink, light pink outer petals, dark purple flares, ages to darker .  Petals ruffled, frilled and twisted; prominent gold stamens.  Mild to strong fragrance.  Medium to large, semi-double to double, ruffled bloom form.  Prolific, Midseason.  
Height: 39" (100cm).  

Hybrid Lutea, Tree peony.  

Hybrid Lutea, Tree peony.  Light yellow or yellow, maroon flares.  Rounded, somewhat notched, waved petals; ring of gold stamens surrounding green carpels.  Single to semi-double, crown bloom form.  

Grandiflora.  Cream, orange shading, yellow undertones, lavender edges.  Very full (41+ petals), in small clusters bloom form.  Blooms in flushes throughout the season.  

Patio.  Deep pink.  Single (4-8 petals), in small clusters bloom form.  

Patio.  Cream, light yellow shading.  Semi-double to double bloom form.  

Shrub.  Red.  Single (4-8 petals) bloom form.  

Hybrid Lutea, Tree peony.  Deep pink, light pink outer petals.  Double, ruffled bloom form.  

Hybrid Lutea, Tree peony.  Cherry-red, dark red flares.  Large, waved petals; prominent yellow stamens.  Single to semi-double, ruffled bloom form.