A soil aerator is a gardening tool designed to improve soil health by creating small holes in the ground. This process allows air, water, and nutrients to penetrate deeper into the soil, promoting better root growth for plants. Aeration is especially beneficial for compacted soils, which can restrict root development and hinder plant growth. There are different types of soil aerators, including manual and powered versions. Manual aerators often have spikes or tines that you push into the ground, while powered aerators, like those used in landscaping or lawn care, use machinery to efficiently aerate larger areas.