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'Rosa rugosa 'Blanc Double de Coubert'' rose Description
'Blanc Double de Coubert (Rugosa, Cochet-Cochet, 1893)' rose photo
Photo courtesy of Michael Dosey
Availability:
Commercially available
HMF Ratings:
104 favorite votes.  
Average rating: EXCELLENT.  
ARS:
White, near white or white blend Hybrid Rugosa.
Registration name: Blanc Double de Coubert
Origin:
Bred by Charles Pierre Marie COCHET-COCHET (France, 1893).
Class:
Hybrid Rugosa, Shrub.  
Bloom:
White or white blend.  Strong fragrance.  10 to 20 petals.  Average diameter 3".  Large, semi-double (9-16 petals) bloom form.  Prolific, blooms in flushes throughout the season.  Long, pointed buds.  
Habit:
Tall, arching, armed with thorns / prickles, suckers on its own roots.  Dark green foliage.  
Height of 4' to 7' (120 to 215 cm).  Width of 4' to 7' (120 to 215 cm).
Growing:
USDA zone 3b through 9b.  Hardy.  vigorous.  Blooms tend to ball in wet weather.  produces decorative hips.  shade tolerant.  Disease susceptibility: very disease resistant.  Remove spent blooms to encourage re-bloom.  Prune lightly until this rose gets established (about two years), then prune it back by about a third..  Remove unproductive wood every third year or so.  
Notes:
Parentage given by breeder states Seedling of Rosa rugosa 'Alba'.
Some difference of opinion about Parentage among modern authors, see References for more information.

Sets only a few hips.
The Swedish Rose Society recommends Blanc Double de Coubert for northern Sweden.

 
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