I have two flower beds at the front of my house which faces E/SE. I'm in Zone 8 in Texas and I would like drought tolerant full sun smaller perennials. I'd like to maintain some spacing so I can walk through them for maintenance. Preferably I'd like some thing hearty that requires the least amount of maintenance. I know this sounds like a cop out but I've changed jobs which doesn't allow me as much time this season. I currently have recycled rubber mulch but am open to hearing the pros and cons of rubber, cedar, pine mulches as well as stone and even no coverings. Asthetics is important though. I attached a couple of photos of the beds from last season with the fresh plantings. I wanted to build a low dry stacked flagstone retaining wall, maybe 8-10" high, instead of the current pavers but wasn't sure how to blend it into the lower sidewalk, which is only about 2" high. also there is the issue of the slopes from the center towards the corners of the house. Sorry if my post is confusing but I just would like some input. Thanks in advance.