Q.Eastern Redbud
Est. Eastern Redbud. Multi stem tree. Last spring a leader did Not bud or leaf out. I tip pruned where it was needed. The pruning push new growth further up on that leader. I also dug around base of rootball and deep water during the summer. Is there anything else I can do to help the tree? The tree has 4 stems and one is not doing so well. What could be the problem.
Certified GKH Gardening Expert
You may need to adjust your soil. The University of Illinois recommends neutral to mildly alkaline soil (pH 6.6 to 7.8). Other sources recommend 7.5, so just be sure your soil is in that range somewhere.
https://www.gardeningknowhow.com/ornamental/trees/redbud/caring-for-redbud-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-leafing-problems.htm