When contemplating the maintenance of one’s garden, a pertinent question arises: should I remove old mulch? Is it prudent to eliminate the existing layer that has served its purpose, or might it provide benefits that are not immediately obvious? Could the neglected, decomposing mulch harbor essential nutrients that continue to nourish the soil beneath? Furthermore, what about the potential for pest accumulation or disease propagation? Is there a risk that retaining aged mulch might lead to weed proliferation, thus undermining the aesthetic and health of my garden? Alternatively, could leaving it undisturbed help with moisture retention, particularly during the sweltering summer months? Is there a recommended frequency for replacing mulch, or does it vary depending on the type of material used? How does one discern when the mulch has outlived its usefulness? Are there signs to look for, or is it a matter of personal judgment? What factors should influence my decision?