Mulching your trees and shrubs can help maintain moisture and improve soil conditions, which will help you grow healthy plants. It is one of the most beneficial acts you can do for the health of a tree, but too much of a good thing can be harmful.
Landscapes are falling victim to the practice of overmulching, which describes the act of piling mulch around the base of trees. This is commonly referred to as mulch volcanoes, and can present many problems. When mulching your trees, keep the 3-3-3 method in mind: place the mulch in a 3 foot ring around the tree, 3 inches deep, and keep the mulch 3 inches away from the trunk of the tree.
View the video below to learn more about proper mulching.