|I have a rock (boulder) wall on the east side of my home. It varies in height from about 4 ft to 1 ft from the house to the driveway. I have little chipmonks that make their home in the cracks and dig out the dirt. I'm looking for a plant that will hold the soil well, that can stand dryness. My home is in a natural type setting with a small creek and wild trees next to it. My landscape next to the house is pretty colorless-with some green and yellow flowering plants and shrubs. Am interested in any suggestions on good erosion control plantings. Back in the 60's, I remember my mother having a yellowish green-succulent looking, plant that only got a couple inches high-thought that it might work well, but haven't been able to find a picture of it.