I am in Zone 5 Indiana. Anyone know of a durable grass seed for my dog's areas? He has a huge kennel/ run and is also on a 50' tie out in the front. We had a major drought last summer and the grass died early. In certain areas, even no more than he is outside, he has worn off the grass in those areas. He loves being out and playing in the rain but it results in him being a muddy mess, not to mention it's ruining our lawn. Any particular grass seed more durable? Also, have any of you tried the quick grass or perfect patch grass covers? I've heard they grow quickly, which would be a fast help w/ the mud situation, but that they are only anuals. Perhaps I could do one of those and then plant a durable perinial seed too, once the grass started to grow? Any tips are appreciated.