My Musa Sikkimensis isn't "Red tiger" (just green with a little red) but it is the first banana to grow in my yard, even before basjoo. The unprotected stems have not been killed in the past 3 years (since I've had it) although the winters haven't been much below the 20's. I think after all is tried out, it may be just as hardy as basjoo - at least in the southeast.
Joe