Yes! In the fall months we switch our product over from a liquid to a granular. The rule of thumb is if you can see green blades poking through the leaves you can fertilize without worry. The granulars will hit the leaves and as the wind blows, you rake, mow, or play in the leaves the product will make it down to the soil. Fall fertilizer is an essential part of your lawn program to feed the lawn over the long winter.