What to know about fall and your lawn:
Turf needs light, water and nutrients to make food. Areas covered with leaves prevent the grass from manufacturing and storing food prior to winter. The leaves may also compact and smother the grass during the winter. Thick layers of leaves should be removed for strong turf growth, a thin layer of leaves can be mulched which by mowing. As the days shorten and temperature changes growth slows, however the roots remain active in the soil. The shift of food reserves from leaves to roots is key to plants return each spring. By fertilizing in the fall the active roots are given more nutrients to store for winter.
Fertilizing can be made in mid-September and late October or early November. Mid-September fertilization promotes shoot growth and helps thicken turf. Applications in late October to early November (when the turfgrass foliage has stopped growing) promotes root growth and early green-up next spring.
Always remember a thick lawn crowds out weeds.