Our last rain lasted a long time and the rain came down hard (not that we weren't all happy to get some rain.) When the rain comes down that hard and the ground is just bare dirt there is a lot of erosion that occurs. A great plant to use to hold the soil (no matter if there is a slope or not) is sunshine mimosa, Mimosa stigillosa. This native plant makes a great turf alternative, grows well in full sun and can also be mowed and edged!