Question: The trees planted in our new subdivision have grass planted right up to the trunks. I want to add mulch around them but don’t know how far out to go or what kind to use. Answer: Installing mulch is one of the most beneficial things you can do for any tree, but this is especially true for new trees. However, if mulch is too thick or not applied properly, it can kill the tree or other plants. Most of our trees naturally grow in a forested environment that will have lots of leaf and twig litter slowly decaying on the ground. The tree roots will have an organic blanket that insulates them from the extremes of temperature and slows evaporation. It also cushions them from soil becoming compacted to the point that the roots will not get enough oxygen because the soil’s large pores are smashed shut. Compare that …
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