For best results, apply when autumn air temperatures are between 60°F and 80°F. One 2.4 lb. bag has a new lawn coverage of 600 sq. ft. and an overseeding coverage of 1,815 sq. ft. FOR FALL GRASS SEEDING: Scotts Turf Builder Grass Seed Fall Mix is designed with grass seeds that establish quickly for growth before the first frost (when used as directed); this mix also feature Root-Building Nutrition for a stronger lawn.