Healthy lawns can thrive without the addition of synthetic fertilizers. Here are a few simple practices that provide nutrients your lawn needs while improving soil health.

Leave grass clippings on the lawn to allow nutrients to return to the soil naturally.
Mow regularly and make sure each mowing only removes about 1/3 of the grass blade. In summer, raise mowing height to reduce moisture loss and encourage deep root growth.
Apply a thin layer of compost in early spring or late fall over the entire lawn and use a shovel to distribute compost.
Leave leaves or mow them into the lawn. They’ll help fertilize your grass as they break down. Leaves also make excellent mulch for your garden beds.
Sometimes the most sustainable lawn care practice is to skip synthetic fertilizer and let nature take its course.