how do you grow a banana tree?

what's coming back - the plant dying off, or something eating it? if you get winters, outdoor bananas (the hardy basjoo type) die to the ground every year and regrow from the base, that's normal, not a problem. full sun, loads of water and feed through summer, cut the mushy top off after frost and pile mulch over the stump. indoors: big pot, bright window, and they sulk below about 15c. brown crispy leaf edges is dry air or not enough water - they drink a lot.