How to Fertilize Your Lawn

1Why Fertilizing Matters

Fertilizing gives your lawn the nitrogen, phosphorus, and potassium it needs to grow thick, green, and resilient. Without regular feeding, grass becomes thin and pale, struggles to compete with weeds, and recovers slowly from stress like drought or foot traffic. A well-fed lawn is also naturally more resistant to disease and insects.

2Choose the Right Fertilizer

The numbers on a fertilizer bag (such as 32-0-6) represent the percentage of nitrogen, phosphorus, and potassium. Most established lawns need primarily nitrogen for green growth. A soil test is the most accurate way to know exactly what your lawn is lacking before you buy. Slow-release fertilizers feed gradually over 6–8 weeks and reduce the risk of burning.

3When to Fertilize

Cool-season grasses (fescue, bluegrass, rye) grow best when fertilized in early fall and again in late spring. Warm-season grasses (Bermuda, zoysia, St. Augustine) should be fed from late spring through summer when they are actively growing. Avoid fertilizing during drought stress or extreme heat — the lawn can’t use nutrients it can’t absorb.

4How to Apply

Use a broadcast spreader for even coverage and overlap passes slightly to avoid striping. Always water the lawn within 24–48 hours after applying granular fertilizer to activate it. Never apply more than the label recommends — excess nitrogen burns grass and can run off into waterways.

5Common Mistakes to Avoid

The most frequent fertilizer mistakes are applying too much at once, feeding at the wrong time of year, skipping a soil test, and using a one-size-fits-all product for the wrong grass type. Slow down, read the label, and match your product to your specific lawn’s needs for the best results.