A lawn aerator is a gardening tool designed to improve the health of your lawn by creating small holes in the soil. This process allows air, water, and nutrients to penetrate deeper into the ground, promoting better root growth and overall lawn vitality. Aeration is especially beneficial for compacted soil, which can restrict the movement of essential elements needed for grass to thrive. There are two main types of lawn aerators: core aerators and spike aerators. Core aerators remove small plugs of soil, while spike aerators simply poke holes into the ground. Regular aeration can help maintain a lush, green lawn and is often recommended during the growing season.