Composting Mushrooms: Beneficial or Problematic?

Those mushrooms popping up in your lawn are perfectly fine to add to your compost pile. Mushrooms are simply the fruiting bodies of underground fungi—mostly water and organic tissue that will break down rapidly.

Far from causing problems, mushrooms may actually benefit your compost by inoculating it with fungal spores that aid decomposition. They'll shrink to almost nothing as they dry, similar to grass clippings.

No special handling is needed—just toss them in with your other compost materials. They're a natural part of the soil food web and contribute to healthy compost ecology.