Water frequently and remove diseased wood.
} Sep 21, Mimosa, or silk tree or silky acacia, was introduced to the Americas in the s and now thrives in the zones 6 to 9. Toward the northern part of its American range, heavy pruning in early spring helps mimosa trees recover from winter die-back. Prune. Sep 05, If your tree is small enough to selectively prune for thinning out the crown or shaping it, that might be your best bet. Instead of just shearing it off, you would select a branch and nip it back to the trunk or to the larger branch.
If you do this, the general rule is to take no more than a. Usual pruning time for this plant (Acacia dealbata) is immediately after flowering is over, when you remove any dead or diseased wood, thin out crossing branches/stems and reduce the size - you can take off two thirds of the growth if necessary.
Sep 09, Pruning – Pruning should occur in winter, while the tree is dormant only after it is established (3 years). Remove dead or diseased wood. Remove dead or diseased wood. The Best Places to Plant the Mimosa Tree/5(K). Apr 23, Pruning of the mimosa tree takes place after the blooming because if you cut the tree in winter, you won’t have a single flower. Cut branches that have born flowers back lightly.
As soon as they appear on the trunk, pinch suckers off.
Shape winter-killed mimosa trees by removing all but the strongest shoot that emerges.
The best time to prune mimosa is during mid-spring (preferably only once a year), when the threat of frost is the lowest; though light pruning is safe any time of year. You need to inspect the tree.