To make a good lawn better, start with a high quality seed that grows a thick, green lawn. Scotts Turf Builder All Purpose Mix. Formulated with high-quality seed varieties, including turf-type Kentucky Bluegrass, this all-purpose mix is filtered 3 times to remove weeds and fillers for a 99.99% weed-free guarantee. Ideal for lawns that get a mix of sun and shade and can be applied in the spring or fall for a thicker, durable lawn that helps reduce weeds Now, that’s a better way to seed and overseed.