may, 2022

This is a repeating event

sat07may9:00 amsat12:00 pmMaster Composter Course - 5 week courseHands on course providing training in the art and science of composting.9:00 am - 12:00 pm

Event Details

Become a Master Composter! The five-week Master Composter course provides training in the art and science of composting. The course includes lectures, guest speakers, demonstrations, and a field trip.

  • Minimize your carbon footprint. Keeping food and yard waste out of the landfill reduces harmful methane gas emissions.
  • Use this “waste” to create amendments 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 and improves water retention. 

The Master Composter course provides training in the art and science of composting. The course includes lectures, demonstrations, and a field trip. The course covers the following topics:

  • Traditional composting
  • Compost bin building and troubleshooting (in teams!)
  • Vermicomposting
  • Bokashi
  • Bugs in your compost pile
  • Environmental impacts
  • Much more!

Master Composter certification requires attendance at all 5 classes, as well as 30 volunteer hours of related community service. Meet new people in this fun, hands-on course and develop your composting knowledge, all while serving your community! Class size is limited.

This class will meet Saturdays from 9:00 AM – 12:00 PM:

  • Week 1 – May 7
  • Week 2 – May 14
  • Week 3 – May 21
  • [No class on Memorial Day weekend]
  • Week 4 – June 4
  • Week 5 – June 11

Residents of unincorporated San Diego County 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.

SPECIAL OFFER! All participants will receive a free kitchen scrap container* after attending the first two classes.

Class graduates will receive their choice of the following*: 1 Soil Saver traditional compost bin, or 1 Wriggly Wranch vermicompost bin. 

Hold your free spot:

This course has been made possible through generous funding from the County of San Diego. In partnership with the Spring Valley Branch Library. 

*Limit 1 per household.


(Saturday) 9:00 am - 12:00 pm


Solana Center