Mulch can damage trees
Too much mulch applied over the root ball or resting against the trunk (see right photo) can cause problems for trees. Roots often grow up and into the mulch causing stem girdling roots which can kill trees (lower photo). In addition to causing problems, mulch can also hide decay and dead spots on the lower trunk and major roots. Decay in this portion of the tree can cause stability problems. Keep mulch about 12 to 18 inches from the trunk.
Mulch on root ball cuts off water |
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