Contains ScottsŪ exclusive Thermal Blue Kentucky Bluegrass. Grows 33% thicker per sq ft than ordinary tall fescue. Stays green even in scorching heat & drought. Aggressively spreads to repair thin and bare spots. Super absorbent coating absorbs and releases water to keep seed moist, even if you miss a watering. Provides faster germination than uncoated seed. No seed is more weed free - 99.99% weed free.