If you’ve ever lifted a flowerpot, stepping stone, or bag of mulch and found a tight, wriggling heap of tiny gray curls underneath, I know exactly why your stomach might drop for a second. It can look alarmingly strange at first glance, almost like someone spilled a handful of miniature metal springs that suddenly came to life. The good news is that in most cases, what you’re seeing is a cluster of millipedes, and they are usually more unsettling-looking than dangerous.
In my little Midwestern yard, I’ve run into them under planters, around hostas, and once under a forgotten stack of bricks by the garage. When you know what millipedes are, why they gather in damp places, and when their presence points to a bigger moisture issue, they become a lot less mysterious. Let me walk you through what you’re likely looking at, whether you need to worry, and what
