I have several knockout roses in my yard?
by
Barbara K
+2
Can they be cut back like regular roses and if so, when?? Live in Raleigh, NC (They're still blooming)
5 answers
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Knockout roses definitely benefit from a good annual pruning, Barbara, which in your area should be done in late winter before the spring growth flush, so late February-early March. Take a good look at the plant, removing any dead or twiggy growth in the interior, and then aim for a nice rounded shape plant of about 2 feet. I think it's a good insurance policy to dip your pruning shears in water mixed with a little bleach before pruning. Because pruning encourages growth, this is a good time to give your plants a good slow-release fertilizer formulated for roses. And I don't think a couple of tablespoons of Epsom salts would hurt, either. Pull the mulch back before you do this and then put it back in place.
Douglas Hunt
on Nov 27, 2011
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Thanks Doug! Really appreciate your help....so I'll prune when I do the crepe myrtles....easy enough!!
Barbara K
on Nov 27, 2011
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Barbara you can cut the knockout roses back now by one-third and cut back another one-third in February or March depending on how warm the late winter is this year.
Mike and Anne
on Nov 27, 2011
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You're welcome, Barbara. Good luck!
Douglas Hunt
on Nov 28, 2011
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Great answer Douglas
Garden Rebel / Sims Landscaping, Co.
on Nov 29, 2011
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