Some people like to prune their roses in the fall.

Here are some basic guidelines for pruning your roses. As a general rule of thumb, roses that flower only once in a season should be pruned right after flowering and roses that flower several times during the season should be pruned in late March or early April once the buds start to break (swell and green up): the adage is to prune your roses"when the forsythia blooms". A good rule of thumb is to wait until the forsythias are blooming (in very early spring) to prune roses to reduce size, encourage spring growth, and rejuvenate the shrub.

Prune to remove dead or diseased growth at any time, though it is best to avoid major pruning from late summer through early winter, as the shrubs will be starting to go treecutter.barted Reading Time: 5 mins. Jan 08, The best time to prune all types of roses is either in late winters or in early spring. This is the time when new growth starts. Fall is not a good time for pruning, as this could lead to the death of the plant.

When it comes to cutting back a knockout rose plant, there are Estimated Reading Time: 4 mins.

Check your rose bush from time to time in late winter/early spring, and when you start to see new shoots growing from the canes on your rose bush, that’s a good sign that it’s time to prune.

If you want to cut back your plant less frequently, you can certainly do so, as Petite Knock Out should maintain its height of about 18”.Location: 8 Federal Road, Suite 6 West Grove, PA United States.