@chris1948 if you find a good one for your area, I hope you share it. I've tried several and haven't been satisfied. I did have a corner in Austin that was in shade all the time and nothing grew. English Ivy finally did the trick there. It can be a bit of a nuisance once it takes off and is growing well. I tried a couple of creeping Thyme varieties. One of those did well for a while, then declined. I was never sure why it did that, but nothing I did seemed to help once it started. That was here and in full sun.