Core aeration is a lawn care process that involves removing small plugs of soil from the ground. This technique helps improve air circulation, water absorption, and nutrient penetration in the soil, promoting healthier grass growth. It is especially beneficial for compacted soils, which can restrict root development. During core aeration, a machine called a core aerator is used to create holes in the lawn. These holes allow for better access to essential elements like oxygen and moisture, which are vital for the health of the grass. Regular aeration can lead to a more vibrant and resilient lawn.