Early Spring- Turf-Master 8-1-8 is our premium Granulated lawn fertilizer containing both readily available and slow release Nitrogen to promote lush sustained green growth while providing nutrients and minerals to thicken the turf and provide a healthy root system. Turf-Master 8-1-8 is ideal for spring applications March-April at a rate of 5lbs per 1000 square feet. Heavier applications, 6-10lb per 1000 square feet, will not burn grass just lawn mower gas