Weeping cherry trees (Prunus subhirtella "pendula") can reach 40 feet in height and 25 feet in width. Weeping cherry trees display pink flowers in the springtime, and the branches droop in typical weeping formation. The trees look best when trimmed annually to keep long limbs off the ground and maintain the weeping shape. Gardeners should prune in early spring once frost danger has passed.
Cut back the tips of any long branches that drag along the ground, using anvil pruners. Prune them back by several inches.
Cut off branches that rub up against or crisscross other branches, since this wood puts pressure on other limbs and may damage them later. Prune these wayward branches back at their intersection with the trunk or with a main branch.
Prune off any branches that do not weep, since they distract from the elegant shape of the tree. Trim these off at the base.
Open up the canopy to increase air circulation, which helps to keep the tree healthy. Choose weak branches that are growing in crowded areas, and trim off some branches at the base so that all branches have more space between them. This will also improve the overall shape of your weeping cherry.
Clip off suckers that grow along the trunk of the weeping cherry tree.