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Mulch is ideal for establishing trees
Mulch performs best when a 2 to 4 inch thick layer is spread on the soil surface around the root ball (above). Little or no mulch should be placed on the root ball (below). The depression around the trunk in the photo below results from a very thin layer (about an inch) of mulch placed on the root ball surface compared to the 3 to 4 inches around the root ball. This depression helps water collect and soak through the root ball when water is applied quickly through a hose.
A thin layer of mulch around established trees can help prevent compaction, keeps mowing equipment away from the trunk, and can conserve soil moisture.
