Knockout Rose Bushes
Q.

Trimming Knockout Roses

Anonymous added on March 10, 2014 | Answered

I have red knockout bushes. Two are about 3 1/2 feet. I would like to have them spread out more. If I trim them back a foot, will they spread? I also have two others that are not spreading which start out yellow then turn white. How do I take care of these two?

A.
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roseman
Answered on March 11, 2014

Pruning back your knockout rosebushes will usually stimulate more growth, just doing a 6 to 8 inch pruning back should be sufficient to achieve this stimulation. Yellow blooming roses usually do have a problem with turning white fairly quickly. There are a few that hold a nice yellow color but most of those are more of a deep golden or redish yellow. So that much is pretty common. Here are some articles on Knockout rosebushes that you may find interesting:

https://www.gardeningknowhow.com/ornamental/flowers/knockout-roses/prune-knockout-roses.htm

https://www.gardeningknowhow.com/ornamental/flowers/knockout-roses/care-knockout-roses.htm

https://www.gardeningknowhow.com/ornamental/flowers/roses/self-cleaning-roses.htm

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