Getting DWARF CAVENDISH Bananas ready for the winter with 4 Racks currently going

Welcome to my small little world. First, that new banana plant I could not remember the name of is MUSA.
I hope I have help you in keeping your banana plants warm through the winter. Remember, I am in central Florida, zone 9b so not sure how this would work for colder climates. For me, the best way of learning is by experimentation and my first winter with these bananas I almost lost all of them as my method of using wire around them and filling with mulch, as others suggest, did not work and nearly killed them all. The last winter I used this method and did not loose a single plant, so hoping for the same success this year. The new challenge for this year is the height of these plants. They are dwarfs so they do not get any bigger. They are roughly 6-8 feet tall now.
Please feel free to share any advice or ask any questions in the comments below.
Thank you for watching. :)