I discovered that in the back yard there was a grass barrier that had been taken over by grass. It must have slowly grown over the 10 years and no one maintained it. I decided to clean it up and make it clean again. I had to do a lot of digging and clearing rock from grass was a pain. I actually took the grass and placed it in some dead patches in my back yard. I had to remove some of the dirt under the grass along the barrier line so the grass would sit lower than the barrier. If I wouldn't have done this, it probably would overgrow again pretty quickly. It looks really nice now that it's done.