Buy the right fertilizer for your lawn. Review your options at the store by reading the bag or test your soil (this can be done by a professional or with a home kit). The three numbers on the bag (such as 10-0-5) indicate the ratio of three key nutrients included in all fertilizers: nitrogen, phosphorus and potassium, listed in this order. Meaning, if a bag reads 21-0-3 it contains 21 per cent nitrogen, 0 per cent phosphorus and three per cent potassium.
Nitrogen: Boosts growth and green colour
Phosphorous: Feeds seedlings and stimulates new root growth
Potassium: Provides all around vigour and health and strengthens resistance to disease and stress.