Summer Pruning Overgrown Knock Out Roses in Kansas City

Controlling Size of Large Knock Out Bushes

New Kansas City home has large, overgrown Knock Outs. Can they be trimmed in June/July?

Yes—Summer Pruning for Size Control

• Spring pruning stimulates growth; summer pruning restricts size.
• Target height 3 ft → cut to 18 inches.
• Target height 2 ft → cut to 12 inches.
• Regrowth in 2 months.

Natural Size

Unpruned Knock Outs reach ~4.5 ft in Zone 6.

Prune now to desired height; they'll rebound and bloom.