Answer
It is an essential maintenance technique that involves perforating the soil surface to improve lawn health.


Explanation
Aeration reduces soil compaction and removes excess thatch, an organic layer that can promote diseases, weeds, and insects when it exceeds 15 mm. Even if the soil appears to be in good condition, annual aeration enhances root growth, nutrient absorption, and water infiltration. Ideally, it should be done in spring or late summer when roots are actively growing and the soil is not too dry.