Cut PVC pipe or a metal drain tube to a length of about 30 inches (75 cm.). Drill several holes into the lower 15 to 18 inches (38-45 cm.) of pipe to make it easier for worms to access the scraps. Bury the pipe about 18 inches (45 cm.)

How do you make your own worm castings?

When making a worm castings bin, layer the bottom with sand and strips of moist newspaper. Then, add compost, manure, or leaf litter and another layer of moist newspaper strips and soil. Add some worms and food, such as kitchen scraps or garden waste.

Can worms live in potting soil?

Worms can be harmed by more than just the chemicals in potting soil. Because it is intended to drain quickly, potting soil is a poor choice for a worm bin. Worms must have some moisture, but not enough to pool in the bottom of the bin. Worms not kept moist have trouble burrowing and often fail to reproduce.