Quick & Thick Sun to Shade Grass Seed Mixture. Southern formula, 5 lb. $12.99 ☆☆☆☆☆ 5 out of 5 stars. · 5 months ago wow that was fast I used to buy other know brand grass seed but it never grew or grew a little. I live in florida its very hot and the sun is searing not to mention the dirt here is more like sand. its hard to grow grass. I bought the 5lb bag of this did my front and back yard tilled it threw down some hay only took one bag. less than a week later grass is EVERYWHERE.