A little more information please. How much water will this area get? I have a area covered by white clover (invasive and yes it does grow in Tucson) that my desert tortoise loves. It gets regular watering along with the grass. I have tried herbs but have had no luck in the full sun. Mint does very good in full sun and the tortoise doesnt like it. Its just a little to invasive for my taste but fills in areas quickly.

Thanks for the ideas. I can give this area as little or as much water as it needs. I like the idea of mint if the tortise doesn't eat it. She can eat sooo much. It would be in a plant barren part of my yard. Just patio furniture so the invasiveness shouldn't be a prob.