Vermicomposting 101: Using Worms to Create Compost

Vermicomposting uses worms to transform kitchen scraps into nutrient-rich fertilizer called worm castings. It's perfect for apartment dwellers and works year-round indoors.

Understanding Red Wigglers

Red wiggler worms (Eisenia fetida) are the superstars of vermicomposting. Unlike earthworms, they thrive in decomposing organic matter and live happily in contained environments.

Setting Up Your Worm Bin

Creating Bedding

• Shredded newspaper (no glossy pages)
• Cardboard torn into strips
• Coco coir
• Moisten until damp like a wrung-out sponge

Adding Worms

Start with 1 pound of red wigglers. Spread them on top of bedding and leave lid off in light—they'll burrow down.

Feeding Your Worms

What to Feed

• Fruit and vegetable scraps
• Coffee grounds and filters
• Bread and grains
• Crushed eggshells

What to Avoid

• Meat and fish
• Dairy products
• Citrus (large amounts)
• Onions and garlic (large amounts)

Harvesting Castings

After 3-6 months, push finished compost to one side, add fresh bedding and food to empty side, wait 2-4 weeks for worms to migrate, then harvest finished side.

Vermicomposting transforms you from waste producer to fertilizer manufacturer right in your home.