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Disinfect your pruners before you get started.

Knock Out Roses Pruning Steps: To maintain a size of 3–4’ w x 3–4’ h, Knock Out Roses should be cut back once a year to 12” high. 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.

Oct 07, The main pruning period for knockout roses is in late winter or early spring, just as the plant prepares for another season of growth. X Research source You can still prune your roses even 96%. Dec 21, Trim Knockout roses in winter by stripping most of the leaves from the roses, as these make the plant vulnerable to pests.

Spray the roses with a horticultural oil.

Then I transferred them into a bigger pot.

Prune in the Late Winter. For long-lasting, easy color, plant Knock Out roses. Low maintenance and disease resistant, they love to bloom. The original 'Knock Out' rose has cherry red single petals. 'Pink Knock Out' has beautiful pink single petals. There are also double flower forms of both Estimated Reading Time: 7 mins.