compost bin master composter

Master Composter courses are a unique opportunity to gain a more in-depth understanding of the composting process and provide insight on sharing this knowledge and passion with others.

The course covers the following:

    • Traditional composting
    • Building, maintaining, and troubleshooting a compost pile
    • Vermicomposting
    • Bokashi fermentation
    • The microbiology of composting
    • Macrodecomposers in your compost pile
    • Environmental impacts
    • And much more!


Think you may want to become a Master Composter? Check out our offerings below based on location!

County of San Diego


Offered to unincorporated County of San Diego residents yearly. Our most recent course took place from February 24th to March 23rd, 2024 in Escondido.

Please sign up for our interest list below to be notified when more courses are released.

City of San Diego


Our next Master Composter Course will take place on Saturdays from September 14th through October 12th, 2024 at the Tecolote Canyon Nature Center. 

Note - Residents of the City of San Diego will receive preferential registration. All others will be placed on a waitlist and apprised of space available 1-2 weeks before the start of the course.

If you'd like to be notified when the course you want is open for registration, sign up for our interest list.