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'Prima Donna ™' rose Description
'Prima Donna ™ (grandiflora, Shirakawa 1984)' rose photo
Photo courtesy of Cliff's High Desert Garden Archival Dec, 2011 last updated 101812
Availability:
Commercially available
Synonyms:
HMF Ratings:
8 favorite votes.  
Average rating: GOOD.  
ARS:
Deep pink Hybrid Tea.
Registration name: TOBone
Origin:
Bred by Takeshi Shirakawa (Japan, 1984).
Class:
Florists Rose, Hybrid Tea.  
Bloom:
Red - purple.  None to mild fragrance.  25 to 29 petals.  Average diameter 5".  Very large, full (26-40 petals), borne mostly solitary, high-centered, reflexed bloom form.  Prolific, continuous (perpetual) bloom throughout the season.  Pointed buds.  
Habit:
Tall, compact, upright, well-branched.  Glossy, medium green, dense, leathery foliage.  
Height of 5' 7" to 5' 11" (170 to 180 cm).  
Growing:
USDA zone 6b and warmer.  Can be used for beds and borders, cut flower or garden.  Vigorous.  Spring Pruning: Remove old canes and dead or diseased wood and cut back canes that cross. In warmer climates, cut back the remaining canes by about one-third. In colder areas, you'll probably find you'll have to prune a little more than that.  
Patents:
United States - Patent No: PP 5,633  on  14 Jan 1986   VIEW USPTO PATENT

A new variety of hybrid tea rose intended mainly for greenhouse culture and
the commercial production of cut flowers, characterized by a continuous
and profuse production of very large red-purple blooms carried on very
long, strong stems; its urn-shaped buds which open slowly to produce well
formed flowers having large petals which tend to marginally turn under and
form points; its free branching and vigorous growth habit; its abundant
production of glossy foliage and long last vase life; and its resistance
to diseases.



Inventors:
Shirakawa; Takeshi (Gamagori, JP)
Assignee:

Nakashima; Toshio
(San Leandro,
CA)


Notes: