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worm composting

Learn how to start worm composting (vermicomposting) at home!

Contra Costa County Department of Conservation and Development  is hosting a FREE virtual Worm Composting Workshop with expert Todd Sutton this Saturday, September 10, 2022 from 10:00 am to 12:00 pm. For more details and to register for the event, click HERE

Worms eat decaying food waste and produce vermicompost, a very effective soil supplement. The worms will produce both a liquid fertilizer and worm castings (a fancy name for worm poop). Worm poop is the best compost! It is a solid, odor free byproduct of worm digestion. You can collect your worm castings periodically and use them as a soil addition, soil conditioner, or even light mulch.

All Contra Costa County residents are welcome. Make sure to reserve your place today! To learn more about recycling or composting, just go to

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