Even if your yard is the fickle sort with varying degrees of sun and shade, you can grow a dense and luscious lawn fast. Scotts Turf Builder Quick + Thick Grass Seed Sun - Shade Mix 12-0-0 grows grass up to 2x thicker in approximately 14 days! This exclusive mix contains the highest quality grass seed plus a special blend of slow-release fertilizers. So, seed not only gets a quick start, it grows into thick, green grass that lasts. This 99.99% weed-free grass seed is made just for full sun and partial shaded areas and ideal for overseeding existing lawns. Great for establishing a new lawn on bare soil.