Grass needs good nutrition to grow strong and healthy. Two key components of lawn nutrition are soil pH and nutrient content. Soil pH determines the plant’s ability to take up nutrients. The ideal pH varies between 5.8 and 7.2, depending on the species of grass. Nitrogen, phosphorus, and potassium are the major nutrients that fuel plant growth. Nitrogen feeds foliage, phosphorus helps roots grow, and potassium benefits overall plant vigor. 

Test the soil to determine which nutrients and amendments you’ll need for a healthy lawn. You may need to add lime, which raises the pH if it’s too low. Starter fertilizer helps newly seeded grass to become established, while winterizer fertilizer provides nutrients that warm-season grasses can store in their roots for a quick start in the spring.