Every summer our lawn would get burnt by the sun, turn brown, and then get taken over by crab grass and clover. Every winter the large oak trees would drop millions of acorns and when we'd try to rake them up the grass would pull out in clumps.We decided to give it a try and you would not believe the miracle they performed on our lawn. The grass was thicker and greener than we'd ever seen and it stayed that way for the entire summer and into the fall. Raking was easier because the grass was healthier. It was amazing!