03/10/2021
When a thick layer of mulch is spread around the trunk of a tree, many things can happen. They’re all BAD.
The depth of the mulch layer depends on the plant. Annual bedding plants need only 1 to 2 inches. Woody shrubs and roses are longer term plantings and benefit from 2 to 3 inches. Trees like a thicker layer in the 3- to 4-inch range.
A good rule to remember is to always go out with mulch, not up. In other words, spread mulch horizontally and don’t pile it up against the trunk. Use a rake or pull the mulch back away from the trunk by hand. As the mulch is pulled back, contour it to resemble a bowl. This configuration helps collect water and direct it towards the root system of the tree during rain or irrigation.
Learn more from my latest SG story: http://ow.ly/ZeRF50DUwvD