When should I fertilize the lawn in the fall?
Fertilizer applications can be made in mid-September and late October/early November. Mid-September fertilization promotes a moderate rate of shoot growth and helps to thicken the turf. An application of fertilizer in late October/early November (at the time of the last mowing) promotes root growth and early green-up next spring. Apply 1 pound of actual nitrogen per 1,000 square feet in mid-September and late October/early November.