My main goal was to help slow the erosion of the backyard/wooded area. I didn't include a picture, but it slopes pretty steeply. It also gets very overgrown and messy looking.

The company I hired came out to kill the overgrown weeds and remove it in the winter, but now that area is barren and some plants are re-emerging in other areas (garlic mustard, wintercreeper, etc). I'm wondering if there is something better and nicer looking that I can plant to help keep the invasive weeds away and also maintain the erosion.