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Master Composter Course in the City of San Diego (5 Week Course)

We're sorry, but this event is currently full. Please check our events list for other Master Composter offerings.

You can also fill out the Master Composter Interest Form to receive notifications of upcoming courses in your area.

The five-week Master Composter course provides training in the art and science of composting.

Become a Master Composter!

  • Minimize your carbon footprint by keeping food and yard waste out of the landfill, helping reduce harmful methane gas emissions.
  • Use this "waste" to create a nutrient rich amendment for your garden. Compost use reduces the need for synthetic fertilizers and pesticides. 
  • Reduce water use and increase water retention. Compost increases your soil's water holding capacity by up to 7 times and retains water for up to 7 days.
  • Work with a team to build, maintain and troubleshoot a traditional compost pile. Course will also cover composting with worms (vermicomposting) and compost fermentation (Bokashi).

Course includes lectures, demonstrations, and a field trip. Master Composter certification requires attendance of all 5 classes, as well as 30 volunteer hours of related community service. 

Week 1 Tuesday, March 21st 5:30 PM - 8:00 PM
Week 2 Tuesday, March 28th 5:30 PM - 8:00 PM
Week 3 Tuesday, April 4th 5:30 PM - 8:00 PM
Week 4 Tuesday, April 11th 5:30 PM - 8:00 PM
Week 5 Tuesday, April 18th 5:30 PM - 8:00 PM

Course Fee: $25*. City of San Diego residents receive preferential registration. Registration will be open to non-residents 1 to 2 weeks before the start of the course.

*If the fee presents a financial hardship, please contact Diane Hazard at to apply for a scholarship. 

This course has been made possible through generous funding by:

Thanks to our site provider, Greenhaven at Ridgehaven.

Event Classification
Funding Source Contract-funded
Category Master Composter Class
Contract San Diego City
Special Note
Stream to Volunteer Opportunities
March 21st, 2017 5:30 PM   through   April 18th, 2017 8:00 PM
The Greenhaven at Ridgehaven
9601 Ridgehaven Court
San Diego, CA 92123
United States

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Main Phone: (760) 436-7986  ext. 700
Course Fee $ 25.00