If you think of worms in the garden, you may imagine the common earthworm turning soil in the garden bed. But the worms that power vermicomposting systems are a special group known as epigeic worms—surface dwellers that thrive in rich organic material.

These worms are nature’s recycling experts. Instead of burrowing deep into soil, they live in leaf litter, manure piles, and compost where food is abundant. Because of this behavior, they are perfectly suited for turning kitchen scraps and garden waste into rich organic fertilizer.

Two species in particular have become the stars of vermicomposting systems around the world: Red Wigglers (Eisenia fetida) and European Nightcrawlers (Eisenia hortensis).

Red Wigglers – The Vermicomposting Workhorse

Red Wigglers are the most widely used worm in vermicomposting systems. These small, reddish worms reproduce quickly, tolerate crowding, and thrive in the moist organic environments found in compost bins.

What makes them ideal...