How to Start a Worm Farming Business


Worm farming can be both a rewarding and profitable enterprise. Although many people keep a box of worms for compost production, it's quite possible to keep a worm farm for a profit.

Things You'll Need

  • Box or bin (2 feet by 3 feet)
  • Drill
  • Shredded newspaper (about 10 lbs)
  • Garden soil (about 1 gallon)
  • Water
  • Red worms (about 2 lbs per 1 lb of garbage)
  • Find out if there is a local market for worms. Check with bait shops, pet stores, and home and garden centers. These businesses all sell worms regularly, and may be willing to use you as a supplier. Start on these contracts now so that when you have a supply of worms ready to be sold, the demand will already be in place.

  • Set up your worm farm. Although you might eventually want to expand, it's best to start small. Get a 2-foot by 3-foot box or bin and drill a couple holes in the sides for air circulation. Fill the bin with 10 pounds of shredded paper, then mix in garden or potting soil to fill the bin. This mixture retains moisture and gives the worms they grit they need. Pour just enough water over the bedding to moisten it, and let it breathe for 24 hours.

  • Buy two pounds of worms from a bait shop or worm retailer. Consider talking to the shop or retailer about using you as a supplier once you've got a consistent and adequate supply. Many bait shops will consider using you as a place to grow their bait, since they'll be able to charge more for larger bait worms. Spread the worms gently across the bedding you've prepared and let them burrow in.

  • Maintain the conditions for your worm farm. Bury kitchen scraps in the soil at least once a week, and keep the soil moist. Maintain a consistent temperature of 70 to 80 degrees F.

  • Clean the box and harvest worms every two months. Sift out the worms and dump the soil as compost in your garden. Harvest the larger worms for sale, and return the small worms to the box with new bedding to continue growing.

  • Supplement sales to bait and pet shops by putting fliers for bait supply on docks and in fishing supply stores. Run ads in appropriate media outlets to advertise the fact that you have direct-supply bait for sale.

Tips & Warnings

  • Worms breathe through their skin, but need moisture to do so, so make sure they always have moisture.
  • Worms die in freezing temperatures.

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  • Photo Credit Earthworms image by Ana Dudnic from
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