Role of Vermicompost


Vermicompost is a healthy, natural fertilizer used by many organic gardeners. Vermicomposting requires a small army of red worms to decompose organic plant wastes and turn them into compost. Vermicomposting plays several roles for gardeners.

Primary Function

Vermicompost is primarily used to fertilize the topsoil in flowerbeds and vegetable gardens. Vermicompost goes twice as far as ordinary compost, so a good rule of thumb is to use half as much.

Planting Soil

Vermicompost can be combined with potting soil to give seedlings and container plants a healthy boost. Seedlings are typically stronger and their growth is accelerated when planted in vermicompost.

Other Roles

Vermicompost is often used to make "compost tea," which is a liquid fertilizer consisting of about 2 tbsp. of vermicompost and a gallon of water. This nutrient-rich liquid works well as a plant food.


Vermicomposting helps gardeners keep valuable resources out of landfills and recycle nutrients from food scraps that would otherwise go to waste. Vermicompost contains no artificial chemicals.

Fun Facts

The worms in a vermicomposting bin can eat their weight in organic matter every day. Worm poop, called casts or castings, contains high levels of nitrogen, potassium and phosphorous.


  • Journey to Forever: Vermicomposting

Who Can Help

  • Earthworm Digest: Young Person's Guide to Vermicomposting
  • Video on Vermicomposting and Vermiculture
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About this Author

Cat Carson has been a writer, editor and researcher for the past decade. She has professional experience in a variety of media, including the Internet, newspapers, newsletters and magazines. Her work has appeared on websites like and, among others. Carson holds a master’s degrees in writing and cultural anthropology, and is currently working on her doctoral degree in psychology.