Imagine heading outside to plant a few spring flowers and discovering something strange in your garden bed. Instead of the rich, crumbly soil you’re accustomed to, the surface looks like someone dumped a bag of used coffee grounds across the ground. At first, you might think it’s a good sign because gardeners are constantly told that loose soil and earthworm activity are beneficial. Unfortunately, that unusual texture could be a warning that an invasive species has moved into your yard.
Researchers are warning gardeners about coffee ground soil caused by jumping worms, an increasingly widespread problem that can damage soil structure and interfere with plant growth. These invasive earthworms can transform the upper layers of soil while remaining largely unnoticed until their populations become established. Here’s what to look for and why this unusual soil texture deserves your attention.
