The Worm Factory® Standard 3-Tray Composter

Proven to have ten times the nutrients of traditional backyard compost!

Composting with the Worm Factory uses worms to do the work of breaking down waste and is more efficient and easier to manage than a traditional backyard compost pile. Worm compost has been proven to have ten times the nutrients of traditional backyard compost. In addition, its compact design makes it perfect for use in any household.

Worm composting makes it easy to recycle kitchen scraps, paper waste and cardboard into nutrient-rich fertilizer for your plants, creating a more sustainable lifestyle. The worms work 24/7 to efficiently produce highly beneficial, rich compost packed with microbes and water soluble plant nutrients.

The Worm Factory is simple to set up and operate. Managing your Worm Factory takes less than 15 minutes a week. Simply add a handful of worms and your organic waste such as kitchen scraps and shredded paper to the bottom tray of the Worm Factory. The worms will start processing the food. Once the bottom tray is filled add another tray. The worms migrate upward to the newest food source leaving the bottom tray full of nutrient-rich compost. You can do this year-round inside or outside, and harvest compost up to once a month!

Your first tray will take about three months to become fully composted by the worms. After the first tray is composted the other trays can take as little as a month depending on the waste added. Once you harvest your finished compost from the bottom tray, you will have an empty tray to stack on top again.

The nutrient-rich finished compost can be used in your garden, raised beds, container gardens, or on houseplants. Even if you're not a gardener, the Worm Factory helps you reduce your impact and provides an alternative to throwing your waste into the landfill.

Includes "Quick Tips" instructions on lid, comprehensive instruction booklet, start-up worm bedding, and built in leachate (liquid fertilizer) collector tray and spigot for easy draining.

Choose either terra cotta (TC), green (7G), or black (8B). Dimensions: 16"L x 16"W x 21"H. Red Wiggler worms available in 1/2 lb (RWW05), 1 lb (RWW1), or 2 lbs (RWW2).

Item # Color Stock Status Price Qty
WF3-8B Black Out of Stock
WF3-TC Terra Cotta Out of Stock

Product Information


  • Made of break-resistant poly
  • Available in green, black or terra cotta
  • Dimensions: 16"L x 16"W x 21"H
  • Weighs 13 lbs empty
  • Operational in temperatures between 45 and 85 degrees

Product Features

  • Comes with: "Quick Tips" instructions on lid, comprehensive instruction booklet, Start-up worm bedding, and a built in leachate (liquid fertilizer) collector tray and spigot for easy draining.
  • Compact and expandable up to 7 trays
  • US made high quality post consumer recycled plastic
  • Choice of color: Black, green, terracotta
  • Create compost year-round, indoors and out
  • 10 year limited manufacturer warranty
  • Odor-free operation
  • Houses thousands of worms that consume pounds of waste per week


Product is covered by A.M. Leonard's 30 day satisfaction guarantee



Image Gallery


  • QUESTION: What worms are recommended?
  • ANSWER: Red Wrigglers are highly recommended. They have the eating habits and "social habits" needed to make the composter work

Customer Reviews

Review Summary (Based on 1 Reviews)

Overall Rating: 5/5

Write a Review

from NJ

So easy-to-use


We had a semi-successful worm farm using a Rubbermaid container, but decided to kick it up a notch. The worm factory was easy to set up and even easier to use. We have many happy worms, no smell, NO fruit flies (most important). The worm castings are easy to access and remove to feed our plants. The worms are fat and happy, making babies by the tons, but never more than the worm farm can handle. We are considering buying a second one because this one has been so great!