We use natural pine pellets for the cat litter. Works wonderful and breaks down to sawdust. After the litter is “worn out,” is it safe to mix into the compost pile? Is the ammonia too much for the compost? Thanks for helping with our debate.
Certified GKH Gardening Expert
Because of the risk of diseases like toxoplasmosis, we don't recommend adding cat litter to a compost pile for use on edible plants. If the compost will be used only on ornamentals, then yes, you can add cat litter as a good source of nitrogen.