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'Carefree Celebration' rose Description
'Carefree Celebration' rose photo
Photo courtesy of NorthWestRider
Commercially available
HMF Ratings:
42 favorite votes.  
Average rating: EXCELLENT-.  
Orange or orange-red Shrub.
Registration name: RADral
Bred by William J. Radler (United States, before 2004).
Introduced in United States by Meilland-Star Roses Inc. in 2007 as 'Carefree Celebration'.
Introduced in United States by Star Roses & Plants (California) in 2018 as 'Coral Knock Out'.
Pink, orange undertones.  13 to 18 petals.  Average diameter 3.5".  Medium to large, semi-double to double, cupped bloom form.  Blooms in flushes throughout the season.  Pointed buds.  
Medium.  Matte, medium green foliage.  

Height: up to 4½' (up to 135cm).  Width: up to 4½' (up to 135cm).
USDA zone 4b through 10b.  Can be used for beds and borders, garden or landscape.  Hardy.  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.  
United States - Patent No: PP 19,803  on  10 Mar 2009   VIEW USPTO PATENT
Application No: 11/980,538  on  31 Oct 2007
Varietal denomination: cv. Radral
The new variety of Rosa hybrida shrub rose plant of the present invention was created at Greenfield, Wisc. U.S.A., by artificial pollination wherein two parents were crossed which previously had been studied in the hope that they would contribute the desired characteristics. The female parent (i.e., the seed parent) was the `Radorg` variety (non-patented in the United States). The male parent (i.e., the pollen parent) of the new variety was the `Rader` variety (non-patented in the United States). The parentage of the new variety can be summarized as follows: `Radorg` .times.`Rader`.
Ploidy information from David Zlesak.