Quote Originally Posted by DrTimPerkins View Post
It depends upon the soils and what the stress is. Maple trees have a high demand for calcium, so liming is often a good idea, but should only be done moderately. This will also increase the availability of many other nutrients.
The soil is clay and stress is from root disruption inside the drip line from a 24" deep x 4 inch wide trench cut between two mature trees for utilities. Leaves seemed slightly smaller and not as thick as in prior years. These red maple trees are along the edge of the woods. Based in southwest PA.

Would liming be appropriate for these conditions? Apply in spring? Before or after buds burst?