I need to record the failures along with the successes here. I got four quart pots of minus thyme, a particularly dinky-leaved variety called “elfin” from a proper garden center (and paid full price too–5 bucks a pot). This stuff just couldn’t outcompete the weeds sadly. It is a very delicate ground cover, and I didn’t get any pictures of it sadly. It barely lasted six weeks, but the weather was terribly harsh this summer. I watered it a lot, but it never grew to speak of.
I love the look of this, but I don’t think it’s well-suited to my site.