I Just Started A Large Compost Pile This Month. While Cleaning Out The Garage I Found An Old Bag Of Diatomaceous Earth. Can I Put
this in my compost pile? It's a large bag so I'm open to other garden idea for its use. Thank you.
Certified GKH Gardening Expert
You can put some in there, but don't let it exceed 10% of the pile. It does contain some nutrients that can be useful. It shouldn't be used to control insects in the pile, as proper heating and turning of the pile does that. But if you are just trying to find a use for it... Sure, you can throw anywhere from 2 to 10 percent into the pile, safely.
Other than that, there are some other things that you can use it for: