Worm Composting 101: How to Set Up Your First Bin

Welcome to your first day at Worm University!

Today, we are learning how to build a basic vermicomposting system. Composting with worms is faster than traditional backyard composting and produces a high quality soil amendment your plants will love.

Step 1: Choose Your Bin

You need a plastic or wooden container about 8 to 12 inches deep. Drill small ventilation holes in the lid and sides, and drainage holes in the bottom.

Step 2: Prepare the Bedding

Worms need a moist, fluffy environment. Shredded, non-glossy newspaper or cardboard works perfectly. Soak it in water, wring it out like a sponge so it is damp but not dripping, and fill your bin three-quarters full.

Next, add some food scraps to the cardboard. Worms can process any green waste, dairy and meat products should be avoided.

Finally, add your top dressing, Peat moss works well to add a 1 inch layer at the top  because of the superior moisture retention. However don't add to much since peat moss is acidic. You only want to add it to the top and not mix it in. 

Step 3: Add Your Red Wigglers

Red Wigglers are the undisputed kings of composting. They thrive in enclosed environments and eat their weight in scraps every few days.

Step 4: Feeding Time

Feed your worms fruit scraps, vegetable peels, coffee grounds, and crushed eggshells. Avoid dairy, meat, oils, and heavy citrus, which cause odors and pests. Bury the food under the top dressing to prevent fruit flies.