Sorry, I can't give you localized but generalized advice on what's worked for me.
I've been growing bananas for over 12 years, and at one point or another I've had great success with over a dozen varieties. Right now I only have three varieties a Zebrina Roho (Musa Sumatrana Rojo x Gran Nain cross) and two dwarf types like a dwarf cavendish.
What I've found is bananas like water, moderate amounts of fertilizer and decent well drained mulched soil. Other than that I've always considered them rather low maintenance. Not long ago I had one korm die when I experimented with an increased regimen of fertilizer. Anyway, mine have always been grown in partial sun and do well, while cuttings I've given to friends who have them in full sun don't do as well. Too little water? No fertilizer? poor care in general? I don't know.
Y'all may want to scoot over to bananas.org, those folks are a wellspring of info on bananas many likely closer to you than Florida.