hermann tortoise outdoors

We are trying to brumate our Hermann's tortoise Scout (approx. 5-10 y.o.) for the first time, following the instructions in Tom's brumation thread, and have been having some difficulties, hoping to get some advice. She has nominally been brumating for about 11 days as of this writing. Our...

Hello, I live in central Texas and was wanting a German tortoise; however, I have some concerns. We have hot summer sand mild winters but it does get below 40. How cold can it get for a Herman tortoise? Is there some secrets to help them survive through winter outdoors? Thanks for the information.