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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
Commercially available
HMF Ratings:
8 favorite votes.  
Average rating: GOOD.  
Deep pink Hybrid Tea.
Registration name: TOBone
Bred by Takeshi Shirakawa (Japan, 1984).
Florists Rose, Hybrid Tea.  
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.  
Tall, compact, upright, well-branched.  Glossy, medium green, dense, leathery foliage.  
Height of 5' 7" to 5' 11" (170 to 180 cm).  
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.  
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.

Shirakawa; Takeshi (Gamagori, JP)

Nakashima; Toshio
(San Leandro,