Can be performed in the spring or fall immediately following core aeration. Grass seed is broadcast over existing lawn by the use of a rotary spreader. The seed blend will be chosen based on your sites specific growing conditions. Application rates are typically 4-6 lbs. per thousand square feet. A starter fertilizer is often incorporated with this service to promote quicker growth. Over- seeding is an excellent way to fill in bare spots or thicken up sparse areas of existing turf.