Winterizing Knockout Roses - Knowledgebase Question

Robins, Io
Question by metsrbest69
September 28, 2008
What should we do for Knock out shrub rose in preparing for the winter?

Answer from NGA
September 28, 2008


Knockout roses don't really need any winter preparation. Mulch heavily in late fall after a few freezes. In early spring cut them back to remove any winter damage or to about a foot high, which ever is more. Gradually remove the excess mulch to leave a layer about three inches deep. Also fertilize and/or topdress with compost in early spring. Even if they die back to the ground they should regrow and bloom next summer. Enjoy!

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