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?


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Answer from NGA
September 28, 2008

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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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