So I cleared a small area in the wooded hedgerow separating my yard from a neighbors, for storing piles of topsoil, mulch, stone, etc. I graded it roughly level, but the soil has no stability, especially after rain. I need some sort of ground cover to keep poison ivy at bay, and provide soil stability. Ideas? I can plant grass , the only down sides to that being poor durability (in the shade), and the fact that I'd have to mow it.