We have a backyard thatis level, but then drops with a hill, then its flat again. I was playing on the first flat level with DS (16 months) and we had shrubs that were kind of blocking him from going down, they at least provided a visual barrier KWIM? Well, DH decided to cut them down, so now there is no barrier to the giant hill. Any alternative ideas to a fence? I was thinking a large planters box and I could put flowers there or something? Are fences expensive? I'm clueless.

Thanks.