I'd say go for it. Being that you are in a drier climate,
with Tiffany. It should be less ruly. My mother in Charleston, SC 8b leaves a few short pieces in the ground over the winter and then creates hanging baskets and places other pieces in large pots for spillers in spring. This year, the ones in her pots did not die out over the winter. They were sheltered on her porch, though. Mine in the ground died back after being frozen, but are now coming back in force. I like the tri-color trandescantia better than the green.
Enjoy your plant!