Just like plants, grass needs light, water and air to grow and stay healthy. To improve the efficiency of these factors we recommend aerating. For minimum aeration you can clean the lawn well at the end of Autumn and give it a good raking every Spring. To further aerate the soil and root system, systematically poke holes in the ground. You may choose different aerating methods depending on your lawn size and involved expenses. The options are a garden fork, aerated shoes or a core aerator for large areas which can be hired.