The best time to establish or overseed with Heartland Supreme Tall Fescue seed is in September and October, BUT, if you want to maintain during spring, the time is NOW! Spring overseeding should occur at the end of February, during March, and first week of April. Easton Sod Farms offers Heartland Supreme Fescue seed in 5 lb. bags, 25 lb. bags, and 50 lb. bags. We recommend 3 to 4 pounds for every 1,000 square feet for an established lawn and 4 to 8 pounds for every 1,000 square feet for a new lawn. If you have any questions about fescue or other products, please give us a call.