Learn to reduce and eliminate yard trimmings and turn it into wonderfully rich, free compost for your garden. Discover the basics of backyard composting, composting with worms and grasscycling. Become familiar with tools, types of bins and the ins and outs of recycling yard trimmings, garden waste, and even some food scraps. Learn about Grasscycling. Grass clippings release valuable nutrients back into the soil.

2023 Free Workshops

Sign up for a free in person workshop!

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Backyard Compost Workshop - Learn How To Compost in Your Backyard! 

Learn how to compost in your own backyard - hot composting, cool composting, and a little bit about worm composting!  At the conclusion of the workshop you may purchase a discounted compost bin for $20.00 (One bin per household). 
Sunday, March 26, 2023
Hagafen Winery - 4160 Silverado Trail, Napa, CA 94558
10:00 AM – 12:00 PM (allowing time for Q&A)
Maximum class size: 15-30 (maximum of 15 cars- depending upon carpool)
You must complete the workshop in order to purchase the discounted backyard compost bin for $20.00. One per family/household.

Worm Composting Workshop 

In this workshop, you will learn all about worm compost and how to keep your worm box alive. This workshop includes a free worm compost tool kit, including the worms. You will set it up with the UC Master Gardeners at the end of the workshop to take home! 
Saturday, April 29, 2023
UC Cooperative Extension Napa County - 1710 Soscol Ave #4, Napa, CA 94559 (located at the back of the parking lot, so try not to miss the turn into the location!)
12:00 PM – 2:00 PM (allowing time for Q&A)
Maximum class size: 30

Dual Composting Workshop 

Learn about worm or backyard composting - choose your own adventure!  For those taking the backyard composting portion, after concluding the workshop you may purchase a discounted compost bin for $20.00 (One bin per household).  Worm class attendees will receive a free worm compost tool kit, including the worms, that you will set up with the UC Master Gardeners to take home! 
Napa Valley College - Upper Valley Campus - 1088 College Ave, St. Helena, CA 94574
Saturday, May 20, 2023 
10:00 AM - 12:00 PM (allowing time for Q&A) 
Maximum class size: 30

Dual Composting Workshop*

Learn about worm or backyard composting - choose your own adventure!  (*Este reunion estará disponible en español con intérprete en vivo).  For those taking the backyard composting portion, after concluding the workshop you may purchase a discounted compost bin for $20.00 (One bin per household).  Worm class participants will receive a free worm compost tool kit, including the worms, that you will set up with the UC Master Gardeners to take home!  
UC Cooperative Extension Napa County - 1710 Soscol Ave #4, Napa, CA 94559 (located at the back of the parking lot, so try not to miss the turn into the location!) 
Saturday, September 16, 2023 
12:00 PM - 2:00 PM (allowing time for Q&A) 
Maximum class size: 30

For more information or questions about our workshops, contact our recycling team.

UC Cooperative Extension Napa County Master Gardener Program

For information on how to compost or troubleshooting, contact the UC Cooperative Extension Napa County Master Gardener Program at 707-253-4221 Mondays and Fridays 10 a.m - 1 p.m.