Adding mulch is a great way to lock in moisture and block sunlight so weeds don’t overtake your garden, but avoid over-mulching. If the mulch is too deep, it can create too sterile of an ecosystem that is normally fed by things like fallen leaves and other debris. Plus, birds often look for food like insects in the soil, and too much mulch can prevent birds from finding those much-needed food sources.
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ANDREWS MCMEEL SYNDICATION