Growing Tillandsia Outside

[aliceinwl]

I’ve accumulated an eclectic collection of Tillandsia that I’ve hung from my fence with the orchids. All are doing well so far but I’m wondering about winter. From what I’ve read most are hardy down to at least 40 degrees Fahrenheit if dry. We do get the occasional frost and winter lows in the mid to upper 30 degrees Fahrenheit. I’m wondering if I need to bring them in or just make sure they’re dry. I’ve probably got 100+ species at this point all are well acclimated (bought this spring/summer).

I attached a photo of a small section of the fence (I can’t figure out how to improve resolution), but it gives an idea of the scope of the “problem”.