pjkfarm

Basjoo is a different animal and can stay outside in the ground happily all winter zone 6b and much colder. We never mulched but never got flowers, this year have heavily mulched and protected and hope for flowers next year (but without mulch still got big mats and 10 feet tall in totally exposed areas.
But for real edible bananas, We have found that best results are growing in ground and digging in fall after chopping off all leaves and storing in root cellar (other on this forum have great pictures, store in crawl space under house, garages, etc. with great description of how they do it.) Our experience with pots hasa been poor - maybe not enough fertilizer or ????, so we dig - but not a big deal as one does not save the roots and the corms are "small". (8-10" diameter on our biggest with pstems of 10feet).