Hybrid rockii, Tree peony.  Early.  

Hybrid rockii, Tree peony.  Light pink, dark purple flares.  Gold stamens.  Semi-double bloom form.  

Hybrid rockii, Tree peony.  Cream, lilac center.  Large, single bloom form.  Midseason.  
Height: up to 4'11" (up to 150cm).  

Hybrid rockii, Tree peony.  Pink.  Mild to strong fragrance.  Semi-double to double bloom form.  

Hybrid rockii, Tree peony.  

Hybrid rockii, Tree peony.  

Hybrid rockii, Tree peony.  

Hybrid rockii, Tree peony.  

Hybrid rockii, Tree peony.  

Shrub.  Yellow.  Strong fragrance.  Medium, very full (41+ petals), borne mostly solitary bloom form.  Prolific, continuous (perpetual) bloom throughout the season.  
Height: up to 35" (up to 90cm).  

Species, Tree peony.  

Tree peony.  Red.  Prominent gold stamens, notched petals.  Single to semi-double, cupped bloom form.  Mid-to-late.  
Height: up to 35" (up to 90cm).  

Hybrid / Species crosses.  Blush, ages to cream .  Prominent ring of gold stamens surrounding 5-6 light-green carpels; notched petals.  None / no fragrance.  Medium, single, cupped, ruffled bloom form.  
Height: up to 25" (up to 65cm).  

Hybrid lactiflora.  Lilac-pink or lavender.  Mild to strong fragrance.  Medium, double, cupped, ruffled bloom form.  
Height: up to 30" (up to 75cm).  

Hybrid rockii, Hybrid suffruticosa, Tree peony.  Light pink or rose-pink, violet-red flares.  Ring of golden stamens in center.  Large, single to semi-double, ruffled bloom form.  
Height: up to 4' (up to 120cm).  Width: up to 3' (up to 90cm).

Hybrid Lutea, Tree peony.  Rose-pink, maroon flares, cream undertones.  Golden stamens, crinkled, crepe-like petals.  Large, semi-double to double, ruffled bloom form.  
Height: up to 4' (up to 120cm).  

Hybrid / Species crosses.  Pink, lighter edges.  Large, very double, ruffled bloom form.  
Height: 28" to 30" (70 to 75cm).  

Hybrid Lutea, Tree peony.  

Hybrid Lutea, Tree peony.  Rose-red and orange-red.  Golden stamens, petals, notched and ruffled.  Medium, semi-double bloom form.  
Height: up to 34" (up to 85cm).  

Miscellaneous OGR.  Pink, darker center.  Small, semi-double (9-16 petals) bloom form.  Once-blooming spring or summer.  
Height: up to 9'10" (up to 300cm).