The Q&A Archives: How & when to prune roses

Question: I have 3 large bushes of

Answer: I apologize if you receive this answer twice, my email is a little erratic today. Knock Out can grow to five feet or so in a long growing season or if left unpruned. It should be pruned back very hard once a year in late winter or early spring. Cut it back to about 15 inches. This helps keep it dense and vigorous as well as a bit shorter overall. Do not prune it now. Enjoy your roses!

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