I post this pic all the time when people ask if BC can take climates out of the southern U.S. the BC in the middle of the photo was originally collected in the Achafalaya swamp in Louisiana. That was 30 years ago. I’ve overwintered outside under mulch for all those winters. Snow cold (not arctic cold) are part of its life. It is very hardy if allowed to acclimate with fall frosts and shallow freezes