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 grows grass 2X thicker – in just 14 days. Our exclusive mix contains our 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. 99.99% weed-free grass seed made just for full sun and partial shade. Ideal for overseeding existing lawns. Great for establishing a new lawn on bare soil.