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Too late to trim

Our Knockout roses and other shrubs really need one more trim before winter sets in. Is it safe to trim this late in the year?

Knock Out rose

Photo from Star Roses and Plants

The best time for shrub-trimming depends on what you have, but now that we’re rushing headlong into winter, it may be best to wait a few more weeks — until late winter or early spring — to take the shears to anything. If you have spring-flowering shrubs, especially, wait until after they finish flowering, to avoid cutting off the buds.

Rose experts generally say that the Knock Out rose varieties don’t need to be trimmed every year. Some garden specialists recommend removing about a third of the old branches every two or three years to encourage new growth. They can also be cut back to reduce the size of the plant. Whatever pruning or shaping you need to do, late winter is a good time for the task.

(Photo of the Knock Out® rose Rosa‘Radrazz’ is from Star Roses and Plants)

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