Watched a show that said they are happy in the UK...I had not idea they would take cold. c
They show up here at the Master Gardener fruit tree sales (though they're not a tree), so they must do okay in the Houston area, but I'll bet they need protection from freezes.
The show is fascinating. In The Cooking channel: "Grow your own
my sister grows them in north central ar. don't know how she protects them but she's had them several years
i know they have great southern exposure.....
I think they can take a mild freeze but the early sring freezes kill the blossoms.. I won't atest to that . That is hearsay. There are HARDY kiwi plants (hardy to Z3!) and maybe NON hardy vines. They like rich dirt and moisture so that is why I stay away from them.
I found this read below that explains a lot. growing might be one thing, getting fruit might be another.
Here is a link that might be useful: Care and types of Kiwi vine.