The purple plum tree is also known as the purple-leaved plum and cherry plum. This flowering, deciduous tree is medium sized with a rounded crown. A mature purple plum tree can reach a height and spread of 15 to 30 feet. It has deep purple leaves and its dark pink flowers appear in early spring. The purple plum is hardy in zones 4 through 9. Prune your purple plum tree to remove any broken branches or limbs, control its size within your landscape, maintain safety (walkways, structures, roofs) and thin out any deadwood within the crown of the tree.
Prune away any dead or damaged branches as soon as possible. Cut at the breaking point, or remove the entire branch. Make a clean cut so the tree will heal properly, as torn or ripped branches invite disease.
Prune your tree in the spring immediately after it has blossomed to maintain its size. Locate the branch collar on the underside of the branch where it connects to the trunk, and the branch bark ridge on the topside of the branch where it connects to the trunk. Make a clean cut in front of the branch bark ridge and the branch collar. Do not leave a stub, and do not cut into the branch collar or the branch bark ridge.
Cut out any dead twigs, branches and limbs in the crown of the tree. Prune any cross-over branches.