New growth from renewal pruning should be pruned or pinched out when it reaches which height?

New growth from renewal pruning should be pruned or pinched out when it reaches which height?

• A. 6-12 inches
• B. 12-24 inches tall
• C. 24-36 inches
• D. 30-40 inches

Answer: (B)

Renewal pruning aims to keep shrubs compact by encouraging new shoots to branch rather than grow tall, creating a denser, more vigorous plant. Pruning the new growth when it reaches about 12 to 24 inches tall is ideal because these soft shoots are strong enough to respond to pruning and will rapidly produce lateral branches from the cut, giving the plant a fuller form. If you wait until the growth is taller, the plant becomes more leggy and harder to shape, reducing the renewal effect. Pruning too early, at only 6–12 inches, risks removing growth that would have developed into useful new branches. So, the best height to prune new growth from renewal pruning is 12–24 inches.

Renewal pruning aims to keep shrubs compact by encouraging new shoots to branch rather than grow tall, creating a denser, more vigorous plant. Pruning the new growth when it reaches about 12 to 24 inches tall is ideal because these soft shoots are strong enough to respond to pruning and will rapidly produce lateral branches from the cut, giving the plant a fuller form. If you wait until the growth is taller, the plant becomes more leggy and harder to shape, reducing the renewal effect. Pruning too early, at only 6–12 inches, risks removing growth that would have developed into useful new branches. So, the best height to prune new growth from renewal pruning is 12–24 inches.