Q.pruning weeping cherry
We have a 10 yr. old Weeping Yoshino Cherry tree (never pruned). It has grown more outward than weeping downward, and is nowhere near the ground. One long branch has grown upward and outward with another branch growing downward from it. Can we prune the upward portion of the branch (4′ long) completely off, just leaving the secondary branch? Should we wait until after spring bloom?
You can prune a Weeping Cherry in late fall or early spring. Make sure the tree is dormant before pruning.
You need to determine if the tree is a natural Weeping Cherry or a grafted tree. It is most likely grafted.
Here is a link that will help you.