Steep slope, sandy soil , part shade
I've been volunteering at a public garden with a woodland area designated exclusively for native plants. Some areas have sandy soil. What could be planted on a slope to stop erosion and hold the soil? Are there Pycnanthemum that would grow with minimal direct sunlight and mostly shade? Any thoughts? Plants growing there now include Virginia creeper. There are also oxeye daisies and Commelina which need to be removed but not before we have a replacement. Would Chrysogonum work?
I donated Lobelia cardinalis for an area that is not on a slope and is in sun and they do not seem to like the sandy soil.