Composting cat litter is possible — but there are important rules to follow for safety and effectiveness. Here's everything you need to know to do it right.
Can You Compost Cat Litter?
The short answer: some types, yes. Plant-based and wood-pellet litters (like pine, cedar, or corn-based) can be composted. Clay and silica gel litters cannot. The compost should be used only on non-edible plants — never vegetable gardens — due to potential Toxoplasma gondii from cat feces.
Choosing the Right Litter for Composting
For home composting, use only plant-based litters: wood pellets, newspaper pellets, coconut husk, corn-based, or wheat-based litters. These break down naturally and won't leave mineral deposits in your compost. Combine with compostable liners for a fully circular system.
Home Composting Method
1) Set up a dedicated outdoor compost bin — don't use your regular food compost. 2) Layer used litter with carbon-rich material (dry leaves, cardboard) in a 1:3 ratio. 3) Keep the pile moist but not wet. 4) Turn monthly. 5) After 6-12 months, the compost is ready for ornamental plants only.
Industrial Composting Option
If your city has industrial composting (check via BioCycle directory), you may be able to include certified compostable cat litter in your green bin. Always verify with your local facility — rules vary widely.
Pawsitive Earth Compostable Litter Liners (100-pack)
When using compostable liners, the whole removal process becomes cleaner — tie up the liner with the litter inside and take it directly to your compost bin.
Check Price on Amazon →Frequently Asked Questions
No. Cat feces can contain Toxoplasma gondii and other pathogens. Composted cat litter should only be used on ornamental (non-edible) plants.
Plant-based litters typically take 6-12 months in a hot compost pile. Industrial composting facilities can process it in 2-3 months.
Indoor worm bins (vermicomposting) are generally not recommended for cat litter due to potential pathogens. Stick to outdoor or industrial composting.
Last updated: 2026-03-26. We test and research products independently. As an Amazon Associate we earn from qualifying purchases.