When to prune knock out roses - Knowledgebase Question

garden city beach, So
Avatar for Linnybob
Question by Linnybob
February 8, 2011
I have a question regarding my ?knock-out? roses. I am confused as to when I should prune them. Home Depot?s garden club website said -- ?roses that bloom in early spring ? pruning this group in winter destroys the dormant buds, which in turn reduces or eliminates the blossoms on the shrub?. Another website I found on the internet states ? Prune knock-out roses in the spring just before new g

Answer from NGA
February 8, 2011
Knock Out roses are a little more forgiving when it comes to pruning than other roses because they flower off and on from spring until fall. I generally prune mine back in late winter or early spring (by one third to one half) to prepare them for their spurt of growth in the spring. Lots of new stems and branches translate into lots of flowers. Knock Outs will take almost any amount of pruning, even during the growing season so don't be afraid to prune out errant branches or reduce the size of your shrubs. They typically develop new growth within a week of pruning and that new growth should develop flowers within about 3 weeks. Hope this clears up any confusion.

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