Instructions
Designate an area for your worm pit. You'll want it to be anywhere from 18 inches to several square feet. Remember, the richer the soil, the more worms. You may desire to line it with heavy rocks to make the location obvious and static.
Dig out the pit. Fill it with anything rich in nutrients for worms. This includes peatmoss, paper scraps, manure, grass clippings with no lawn chemicals, and coffee grounds. Turn it further into a compost heap by adding organic waste like rotting vegetables.
Add a top layer of dead leaves for mulch or cover the pit somehow. Materials compost faster and become richer environments in dark, damp conditions. A large board of wood can do the trick. Resist the temptation to add worms for at least several months. The extra time will allow the soil to become more rich with nutrients.
Buy and add worms. As the worms accumulate in the coming weeks, continue to add organic waste.