Knock out rose pruning

Asked November 21, 2017, 8:55 AM EST

I have a knock out rose bush that has done amazingly well, but it's getting much bigger than I anticipated and I'm wondering if, when, and how I should prune it back, beyond the normal trim back (about 25%) I do in very early spring.

Harford County Maryland shrubs plant care pruning knock out roses

1 Response

Knock out roses are beautiful and can grow surprisingly large.
The good news is they can take a pretty hard pruning, though we wouldn't take more than 2/3 of the plant off.
The time to do this is late winter into early spring, around March.
This video can help you with getting it done:
https://www.youtube.com/watch?v=e1DQskRx4xc&feature=youtu.be

Here is our pruning guide as well: https://extension.umd.edu/sites/extension.umd.edu/files/_images/programs/hgic/Publications/HG84_Prun...

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