Piccking out the correct seed to patch your lawn can be some tricky work. First thing you need to find out is what type of lawn do you have. Is it a fescue or some other variety? If it's a fescue you have 3 choices. Marathon I, Marathon II or Marathon III. Marathon I is a standard tall fescue that is fast to repair and can handle a lot of traffic. Marathon II is a shorter fescue that can handle traffic and a bit of shade. Marathon III is a dwarf fescue that is slower to repair but you don't have to mow it as much. Other types of lawns are bermuda, zoysia and some others. With those varieties you need to purchase the according seed to make sure you are not mixing seeds in your lawn. If you are looking for more information go to the Marathon website at sod.com. Life's a Garden, Dig It!