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'Rosa portlandia' rose Description
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'Portland Rose' rose photo
Photo courtesy of Kit
Availability:
Commercially available
HMF Ratings:
144 favorite votes.  
Average rating: EXCELLENT-.  
ARS:
Medium red Portland.
Exhibition name: Duchess of Portland (damask perpetual, before 1775)
Origin:
Bred by Unknown (before 1775).
Class:
Damask Perpetual, Portland.  
Bloom:
Red. [Pink to red.].  Mild to strong, damask fragrance.  10 to 15 petals.  Average diameter 3.25".  Large, semi-double (9-16 petals), borne mostly solitary, cluster-flowered bloom form.  Spring or summer flush with scattered later bloom.  Leafy sepals buds.  
Habit:
Armed with thorns / prickles.  5 to 7 leaflets.  

Height: 2' to 47" (60 to 120cm).  Width: 2' to 3' (60 to 90cm).
Growing:
USDA zone 4b through 9b.  
Patents:
Patent status unknown (to HelpMeFind).
Ploidy:
Tetraploid
Notes:
Mike Lowe says Duchess of Portland is a Damask Perpetual and assigns it a date of 1782...
Parentage uncertain, see References for more information. The speculation that 'Slater's Crimson China' was one of the parents was disproved by DNA Analysis at the Claude Bernard University in Lyon, France.
Sangerhausen describe the color of the bloom of The Portland Rose as light red.
 
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