Red wigglers eat food scraps and turn them into vermi-compost, a substance organic gardeners refer to as "black gold." It is rich in nutrients and works well as a fertilizer for vegetables, flowers and even lawns. Building your own red wiggler composting bin is one way to ensure that you have a steady supply of "black gold" all year long.
Building a Compost Bin for Red Wigglers
Drill several holes in the bottom of one 10 gallon stackable plastic bin, as well as around the top rim. On the bottom, holes should be spaced 1 to 2 inches apart and on the top rim, space them about an inch apart. The bottom holes are for drainage and the top holes are for air flow.
Place the empty coffee cans inside of the bin without holes. Place the drilled bin on top of the cans. The coffee cans will act as spacers to keep the boxes from nesting completely, while the un-drilled bin will catch drainage.
Create a layer of wet, shredded paper or corrugated cardboard, then add a layer of compost-friendly food scraps, such as vegetable cuttings, rotten fruit, even coffee grounds. Do not put any meat or dairy products in your compost bin, as they will putrefy resulting in foul odors.
Cover the food scraps with 2 to 3 cups of organic soil from your garden and then another layer of damp newspaper, paper or cardboard scraps.
Place the lid on your new compost bin and leave it covered for two weeks so that beneficial microorganisms can grow. Now is a good time to order red wiggler worms.
Open the lid and gently dump the red wiggler worms in. Close the lid of your compost bin and leave it alone for four to six weeks.
Store your red wiggler compost bin in a shaded location where sunshine will not come through the sides and rain will not flood the nutrients away.