This shrub rose is the most carefree rose on the market. Developed by rose breeder Bill Radler and introduced by Conard Pyle Company in 2000, it was an instant success. The Knock Out rose is low maintenance; tolerates both heat and drought; resists diseases like black spot and powdery mildew; and offers abundant, self-cleaning blooms. Since the introductory single red rose Knock Out won one of three All-American Rose Selections in 2000 for outstanding garden performance, double red, single and double pink, blush pink, yellow and rainbow have become gardener favorites as well.
Plant your Knock Out rose bush in a location that receives six to eight hours of full sun in a hole twice as wide as the rose container and just as deep, adding plenty of organic matter for good drainage.
Water, as needed, using drip or soaker hose irrigation to avoid getting water on the leaves of the bush.
Add 3 to 4 inches of mulch around the rose bush to retain moisture.
Feed every four to six weeks using a slow-release fertilizer.
Prune in the spring following the last hard frost. Simply use hedge clippers to take the bush down to 12 to 18 inches above the ground.