You cover exposed tree roots with topsoil, but Purdue Extension suggests 2-3 inches of wood mulch to reduce mowing over them

In my Port St. Lucie yard, the reflex is to treat exposed tree roots as a lawn problem: add topsoil until the mower has a smoother path. I have looked at roots that way myself. As of mid-September 2026, that neat patch of soil still sounds tempting. Here in Florida, though, a root showing at the surface is not a request to build up the ground around the tree.

There is a mowing problem worth taking seriously. For Port St. Lucie yards, the county extension office warns that lawn mowers and weed trimmers can damage tree trunks. Covering the roots may seem like a way to keep the mower moving, but it does not make added soil harmless to the tree.

Next stepIf soil has accumulated around your tree’s roots or trunk, ask a local pro about removing the excess soil.Describe the soil→Free · Your number stays private

What UF/IFAS Gardening Solutions says

UF/IFAS Gardening Solutions puts the basic issue plainly: “Roots require air as well as water. Roots planted too deeply often lack oxygen.” That is why I would separate a little soil used to cover a root from the familiar routine of adding more topsoil whenever the root becomes visible again. The question is not whether the yard looks level afterward. It is how much soil has been put over a living root system…

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