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'JACtro' rose Description
'Sheer Bliss' rose photo
Photo courtesy of Natalie Bloxham-Arcola Gardens
Availability:
Commercially available
Synonyms:
• Sheer Bliss
HMF Ratings:
63 favorite votes.  
Average rating: EXCELLENT-.  
ARS:
White, near white or white blend Hybrid Tea.
Registration name: JACtro
Exhibition name: Sheer Bliss
Origin:
Bred by William A. Warriner (United States, 1985).
Introduced in United States by Jackson & Perkins Co. (post 1970) as 'Sheer Bliss'.
Class:
Hybrid Tea.  
Bloom:
White, pink edges.  Moderate, spice fragrance.  26 to 50 petals.  Average diameter 4.5".  Large, full (26-40 petals), borne mostly solitary, in small clusters bloom form.  Blooms in flushes throughout the season.  Pointed, ovoid buds.  
Habit:
Upright.  Glossy, dark green foliage.  

Height: 3' to 7' (90 to 215cm).  Width: 2' (60cm).
Growing:
USDA zone 7b and warmer.  Disease susceptibility: very disease resistant.  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.  Requires spring freeze protection (see glossary - Spring freeze protection) .  
Patents:
Australia - Application No: 1992/001  on  6 Jan 1992   VIEW PBR PATENT
Synonym: JACtro. Applicant: Bear Creek Gardens, Inc.
This variety arose from controlled pollination of ‘Pristine’ by an unnamed seedling. It was bred by Mr jack Warriner of Somis, California, USA. A Plant Patent was applied for in the United States of America in 1987. ‘Sheer Bliss’ has been sold in the US since 1987.
 
New Zealand - Patent No: 526  on  20 Aug 1990
 
United States - Patent No: PP 6,282  on  13 Sep 1988   VIEW USPTO PATENT
Application No: 06/892,546  on  4 Aug 1986
Inventor: Warriner; William A. , Tustin CA
This present invention relates to a new and distinct variety of rose plant of the hybrid tea class which was originated by crossing the variety White Masterpiece, U.S. Plant Pat. No. 2,998, with the variety Grand Masterpiece, U.S. Plant Pat. No. 4,767.
Parentage:
White Masterpiece × Grand Masterpiece
Notes: