Perennial ryegrass is valued for its fast germination rate and quick establishment, which makes it a candidate for permanent cool-season lawns and temporary warm-season lawns. Based on your lawn goals, Pennington Smart Seed Perennial Ryegrass may offer just what you need. Smart Seed Perennial Ryegrass grass seed blend is disease resistant and drought tolerant and contains just the right amount of fertilizer to help your lawn succeed. In areas of your lawn that receive 4-hours to 6-hours of sun daily, plant this grass seed mix in the early spring or early fall and see results in 8-days to 14-days. This - lbs. bag covers up to 750 sq. ft. for overseeding an existing lawn and 250 sq. ft. for starting a new lawn from scratch. What makes Smart Seed smart. It's our industry-leading innovation. Pennington's NexGen Turf Research is the largest private grass seed research facility. We lead the industry in developing top-performing, water-conserving, sustainable seed. Once established, our purebred, drought-tolerant Smart Seed grass requires up to 30% less water than ordinary grass seed. That's year after year, for the life of your lawn. Plus, our advanced, Fertilizer-Enhanced Seed Coat technology speeds establishment and promotes greener grass. Born from Pennington innovation and NexGen breeding and research, Smart Seed brings you better seed, better sustainability and better results.