Question: My Knock Out roses have become very leggy. Is this a good time to trim them back and, if so, how far back should I cut them? Answer: Many gardeners take shears to these roses as they grow… ...

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).