Reportedly hardy for Z9b+ so it should be fine, maybe occasional bit of frostbite, as said.
Stephanotis (Marsdenia floribunda)
When I'm going to try to cheat my zone a little bit, I try to get some snips started to bring inside, just in case it doesn't go well for the grounded mama plant. And for a light/slight frost, there's a lot of magic in a sheet, if/when logistically practical.