Because of a high water table I planted my fruit trees in slightly raised beds of about 8-10 inches. This was 4-5 years ago. Lately, primarily do to organic breakdown in the soil the roots of some trees are exposed around the base of the trees, with some undermining of the root ball. I want to add soil, either top soil or garden soil to cover the exposed roots but not too deep. Can this safely be done or should I take another approach?
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Not an expert on the topic - that said, I’d recommend no more than 4" of new mulch at a time. Just enough to retain moisture but not greatly increase chances of killing your roots.
I would add native soil from another spot in your yard just enough to cover the roots rather than mulch or top soil. You don’t want constant humidity in that part of the tree
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