If you cut a branch on 1 side of the shrub, make sure that.

Sep 21, Prune your"Diablo" ninebark shrub in the early to mid-spring after the last hard frost has passed but before new shoots Follow the natural form of the shrub, and place cuts 1/4-inch above a leaf node to encourage regrowth and branching. Jan 29, 11 thoughts on “ Pruning Ninebark ‘Diablo’ ” Kris Peterson January 29, at am. All things considered, it’s a wonderful garden shrub.

I wish I could grow it here in southern California. Cut back long, leggy twigs that stick out from the top, sides and bottom of the ninebark. Use pruning shears to cut twigs 1/4 inch above an exterior bud, or a bud facing the outside of the shrub. It is important to remove larger, interior branches using lopping shears. This shrub is often used in mass plantings or as a hedge.

The same pruning technique can be used if they are planted as a specimen. For these plants, pruning should be done in the early spring, before they leaf out. Shear or prune the outer branch tips to shape and reduce the size of the treeclearing.barg: diablo bush. Clean up any branches and small twigs off the stems as high as you can, leaving some at the top. These will become the trunks of your multistem, small ninebark “tree.”. As the tree grows through the years, keep removing the lower small branches and twigs off the large central leader treeclearing.barted Reading Time: 2 mins.

Ninebark looks best when pruned minimally and allowed to retain its natural size and shape. Cut out dead, damaged and crossed limbs in early spring.

Up to a third of older branches can be removed to improve air circulation. Best stump grinder to start business ninebark blooms on old wood, shape as needed just after treeclearing.barted Reading Time: 7 mins.