Compost & Mulching

Compost and MulchDepartment of Resources Recycling and Recovery (CalRecycle) information on regulations, marketing resources, etc. for compost and mulch producers in California; basic composting information for homeowners; procurement guidelines for government agencies and other resources.

Home Composting

The Magic of Mulch | UC Agriculture and Natural Resourcesby Lori Palmquist What if I told you that mulch could cut your water use by at least a third, provide abundant soil biodiversity, making your landscape thrive like you could never imagine, AND contribute to the reversal of climate change?

Mulch Guidelines | UC Agriculture and Natural ResourcesMulches are materials that are applied to the soil surface, but not tilled, mixed, or combined with underlying soil. Landscape mulches are typically plant residues (organic mulches) or rock, sand, and stone (inorganic mulches).

Cal Poly Certified Organic Compost | College of Agriculture, Food and Environmental Sciences We are pleased to announce that Cal Poly Compost is Certified Organic through CDFA's Organic Input Materials Program(California Department of Food and Agriculture). Cal Poly Compost is a member of the U.S. Composting Council's Seal of Testing Assurance Program. Click on the Video from CDFA for Cal Poly Compost below:

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