knock out roses - Knowledgebase Question

kalamazoo, Mi
Question by kitimalv
September 26, 2009
I have knock out rose, when do I prune it? when do I feed with fertilizer? how to take care of it during fall and winter

Answer from NGA
September 26, 2009


Knockout roses are reasonably hardy and should not need any special preparation for winter. You can mulch over the soil to help moderate soil temperatures and avoid the freeze/thaw cycle which can heave plants out of the soil. Spring and summer are the best times to prune. You can prune your Knockout roses in the spring, just as new growth begins. You can take them down by one-third to one-half without harm. You can prune again in the summer to help keep them compact and blooming for most of the summer months. Feed in the spring when you prune them back.

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