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'Knock Out ®' rose Description
Photo courtesy of Henrique Rodrigues Vivián
HMF Ratings:
95 favorite votes. Average rating:
EXCELLENT-.
ARS:
Red blend Shrub. Registration name: RADrazzExhibition name: Knock Out ®
Bloom:
Bright, fluorescent cherry red. Mild, spice, tea fragrance. 5 to 13 petals. Average diameter 3.5". Large, single to semi-double, cluster-flowered bloom form. Continuous (perpetual) bloom throughout the season. Decorative buds.
Habit:
Armed with thorns / prickles, bushy, compact, rounded. Glossy, dark green foliage. Height of 2' to 4' (60 to 120 cm). Width of 3' to 4' (90 to 120 cm).
Growing:
USDA zone 4b through 9b. Can be used for landscape. Very hardy. vigorous. shade tolerant. Disease susceptibility: very blackspot resistant., susceptible to Mildew. Requires spring freeze protection (see glossary - Spring freeze protection) . Can be grown in the ground or in a container (container requires winter protection).
Patents:
Australia - Application No: 2003/061 on 2003 VIEW PBR PATENT United States - Patent No: PP 11,836 on 10 Apr 2001 VIEW USPTO PATENTApplication No: US1999000229323 on 13 Jan 1999 Shrub rose plant named `Radrazz'. William J. Radler, Greenfield, Wisconsin ... a landscape shrub rose... single blossoms that are red... Excellent disease resistance to blackspot is exhibited... The female parent (i.e., the seed parent) was a seedling of the `Carefree Beauty` variety (U.S. Plant Pat. No. 4,225). The male parent (i.e., the pollen parent) of the new variety was a seedling of the `Razzle Dazzle` variety (U.S. Plant Pat. No. 3,995)... The blooming cycle is believed to be one of the longest observed to date for a rose plant...
Notes:
In his garden in Tyler, Texas, Mark Chamblee, of Chamblee's Rose Nursery, grows 'Belinda's Dream', 'Marie Daly', 'Marie Pavie', 'Livin' Easy', 'Easy Going', 'Knock Out ®', and 'Mermaid'. Mark likes these varieties because "they have great hardiness and disease resistance, they are low maintenance and are very free blooming."
Parentage is per the breeder.
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