Okra is another garden variety selection for heat tolerance.

Many people out here make a raised bed for a garden. Old well seasoned
railroad ties or landscape timbers work. As you know, the native soil
isn't
too good for most common variety garden plants. Place in Dripping Springs
sells good topsoil by the truckload.
--
Jonny

And how do you keep the deer out?
I think that option is out of the question for me. Small scale container
gardening seems to work best here. So far the deer and chickens don't get
on our deck!
With hope and heart,
Kathleen