Ask your neighbor what he does with his! I’ve never had luck keeping Rosemary over the winter, except when I lived in CA where it grows like a shrub and you have to prune it to keep it from taking over! LOL. I’ve never had luck bringing it in (indoor climate is too dry, I think). Perhaps if you had a guest bathroom where it could live and you could keep the temperature down, it might survive. Otherwise, a sheltered area in the yard would be best.
Where are you in TX? In some parts of TX, it might survive in a rock garden where the heat of the stones kept it warmer and the overall climate is not too harsh. (I’m thinking Houston.)
I've never been able to get rosemary to really start. If I buy a potted rosemary from the nursery in the spring, we have a drought, and it dies. Planting the packet of seed where 1 has lived, was an act of faith and what-the-heck.
I find I've developed an emotional attachment to the one that survived so far. ;)
I have a feeling it may be like Sacher tortes were for me in culinary school. Know the theory. Do the steps. Never, ever works.
I'll bet I don't stop trying. ;)
/johnny