I need help in my backyard. I've got an area beside my building that goes down hill. Not much of a slope but I think its where the rain goes and washes the soil/dirt away. I don't have any grass there because are woods behind my house and the sun comes up and goes the other direction away from this area, so it doesn't see much sunlight. You can see where the area is real jagged since the soil gets washed away before any grass gets started good. What would be my options with helping this area? I know I will need to bring in some topsoil. Do I aerate or break up the existing ground and then add the topsoild and spread seed? Its not a big slope at all just goes down hill to a ditch.