How to Get Rid of Lawn Mushrooms Naturally and Chemically

Mushrooms popping up across your lawn are the visible fruiting bodies of underground fungi feeding on decaying organic matter—often buried wood, dead tree roots, or construction debris. While mostly harmless, they can be unsightly and indicate soil conditions worth addressing.

Organic Control: Baking Soda Solution

Dissolve 2 tablespoons of baking soda per gallon of water and spray or drench affected areas. This raises surface pH temporarily, discouraging fungal growth. Repeat applications may be needed, especially after rain. Baking soda also helps prevent fungal diseases like powdery mildew on ornamental plants.

Chemical Option: Fungicides

Products containing myclobutanil (e.g., Funginex, Immunox) can suppress mushroom-producing fungi. However, they don't remove the food source, so mushrooms often return.

Address the Root Cause

For persistent clusters, dig down to find and remove buried wood, stumps, or decaying roots. Improving drainage and reducing excessive thatch also makes the environment less hospitable to fungi.

When to Ignore Them

Scattered mushrooms after rain in a healthy lawn are normal and temporary. They'll disappear as conditions dry. No treatment needed unless they're prolific or you have pets/children who might ingest them.