Step 1 Determining Fertilizer Type
Lawn fertilizers are distinguished by the N-P-K numbers on the front of the bag. These letters stand for Nitrogen (N), Phosphorus (P) and Potassium (K) and represent the percentage by weight of each of those nutrients in the fertilizer. Nitrogen helps plants grow and green up, Phosphorus stimulates deep root development and Potassium provides all around health and disease/drought resistance. Choosing the right combination depends on a number of variables including sunlight exposure and climate.