I'm looking for a low-growing ground cover. It needs to be clean because it will be directly behind the back wall of the pool on a small slope. I also prefer that it not attract bees or be a desirable nesting areas for rats. The south-facing slope is in full sun until about 4pm. Summers are 90-100 degrees and winter nights drop to the low 30's. We have several queen palms already planted on the slope. Any suggestions? Thanks.