Pennington Smart Patch Tall Fescue Mix comes with everything you'll need to fix your bare patches, neutralize the soil, and disease problems. It takes the guesswork and frustration out of lawn maintenance by allowing you to grow thick, lush, water-wise grass even on slopes and hills, seeing quick results you can rely on. This dynamic seeding combination contains microbial with organic matter to fight off and prevent lawn diseases, proprietary American Ryegrass to ensure speedy results, and a water-soluble tackifier to function as a covering for your seed, even protecting it from rain on slopes and hills. When the mulch in the Pennington Smart Patch Tall Fescue Mix dries out, it turns a lighter color, signaling that it's time to water again.