To insure continuous flowering, feed your roses with a fertilizer blended especially for Knockout roses after each bloom cycle (ie. 3% N, 4% P and 3% K with 9% Ca, 0.5% Mg and 1% S).

SHREVEPORT, La. - Both Knockout and Drift roses have become favorites in both residential and commercials landscapes due to their low maintenance and impressive blooming cycles.

Knock Out roses, in general, are quite resistant (not immune) to black spot disease. During wet weather conditions, however, even resistant plants can be attacked to some degree.