The answer to 'why is my mulch bare spots' is that there are several common causes, including heavy foot traffic, poor soil quality, or inadequate mulch coverage. Bare spots in your mulch can be unsightly and may allow weeds to grow, so it's important to address the issue.
Some common causes of bare spots include heavy foot traffic compacting the mulch, poor soil quality that prevents plants from thriving, or not applying enough mulch initially. The solution is typically to add more mulch to the bare areas, improve the soil, and consider installing edging or other barriers to protect the mulch from foot traffic.