Beneath the surface of a healthy garden lies a world of quiet engineering. While compost worms recycle organic matter and field worms mix soil near the surface, another group of worms works even deeper below ground. These are the anecic worms, the long-lived tunnel builders that help shape the deeper structure of the soil.

Though they may rarely be seen, their influence on soil health can be enormous.

Anecic Worms – The Deep Soil Specialists

Anecic worms are known for creating deep vertical burrows that can extend several feet below the soil surface. Unlike worms that spend most of their lives near the topsoil, these worms maintain permanent burrow systems that they return to again and again.

Many gardeners recognize these worms as large nightcrawlers. During the night, they emerge from their burrow entrances to gather leaves and other organic debris from the soil surface. They pull this material...