I "met" online some tort rescuers in the Houston area, they say the climate is fantastic for them even though it's very humid.
No real winter to worry about.. sounds great.
I'm 10-12 hours away to the west in the desert side of the state so.. I can't give much advice on keeping them where you are.
I can tell you that except for some extremely cold temps that usually happen in January, the rest of the year it's great keeping sulcata in the desert.
Don't even have to feed our tortoise, all she needs is growing right outside her door.
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PHRatz