Repairing a Split Trunk on a Young Redbud Tree

Assessing the Damage

A 5-year-old redbud (Cercis canadensis) suffered a storm-induced split in its main leader, creating a 6-inch vertical crack. The damaged branch was removed, and the split was tied together. The owner wonders if bolting and wound dressing can save the tree.

Recommended Treatment

Instead of bolting, wrap the wound with tree wrap to hold the cambium layers in contact. Before wrapping, apply grafting wax to seal moisture in and promote healing. A newer product, Parafilm Grafting Film (available at nursery suppliers), can replace both wax and wrap. It stretches, adheres to itself, and allows gas exchange while protecting the wound.

Long-Term Outlook

Redbuds can compartmentalize wounds if the cambium remains aligned and moist. Keep the tree well-watered (1 inch per week) and mulched. Monitor for signs of decay or insect entry. With proper care, the tree may recover and continue to grow.