The answer to 'lawn fertilization schedule' is that most lawns should be fertilized 2-4 times per year, with the first application in early spring and the last in late fall. The specific schedule will depend on your climate, grass type, and lawn care goals, but a typical schedule is fertilizing in early spring, late spring, late summer, and late fall.
Fertilizing in the spring and fall helps to promote healthy growth and prepare the lawn for the upcoming season. Summer and late fall applications can also be beneficial, especially in warmer climates, to ensure the lawn has the nutrients it needs to thrive. Be sure to follow the product instructions and avoid over-fertilizing, which can damage your lawn.