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'Semi-plena' rose Description
'<i>R. alba semi-plena</i>' rose photo
Photo courtesy of jedmar
Availability:
Commercially available
HMF Ratings:
125 favorite votes.  
Average rating: EXCELLENT-.  
ARS:
White, near white or white blend Alba.
Registration name: Alba Semi-plena
Origin:
Discovered by Unknown (before 1623).
Class:
Alba.  
Bloom:
White, yellow stamens.  Strong fragrance.  11 to 22 petals.  Average diameter 2.5".  Large, semi-double to double, cluster-flowered, in small clusters bloom form.  Once-blooming spring or summer.  Leafy sepals buds.  
Habit:
Arching.  Medium, grey-green foliage.  

Height: 6' to 9'10" (185 to 300cm).  Width: 4' to 5' (120 to 150cm).
Growing:
USDA zone 3b through 9b.  Can be used for garden.  Produces decorative hips.  Remove old canes and dead or diseased wood..  Can be grown as a climber in mild climates.  Prune after flowering is finished.  This rose blooms on old wood.  
Patents:
Patent status unknown (to HelpMeFind).
Ploidy:
Hexaploid
Notes:
Rosa alba var. semi-plena Ser. Mél. bot. 1(1):36.1818.
Produces red hips in fall.
 
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