Mushrooms in your lawn

Mushrooms in lawns are quite natural they are the fruiting bodies from mycelium that forms beneficial symbiotic relationship with the grass plants in the lawn helping them to uptake water and nutrients.
The mycelium in your lawn helps to break down the organic matter in the lawns such as old pieces of wood or dead grass.
As a result of this action in the autumn or in damp conditions mushrooms form which are the fruiting bodies from the mycelium.
To prevent the mushrooms from forming you should cut your grass and box off the grass clippings feed your lawn regularly and carry out spring and autumn maintenance with scarification and spiking to prevent the buildup of dead grass.
If your lawn produces mushrooms will be fairly short lived and should disappear within a few weeks.