We've grown banana trees for years - technically we're in a growing zone that freezes each winter, so must take them out of the ground as winter approaches.
This year we didn't water them much at all besides the original watering in after planting and the occasional bucket of water I saved when showering. We dig them out and put them in the basement for overwintering. Took some pictures of a part of our crop.
The ferny looking thing is another plant, a cypress vine, not part of the banana.
These are Hawaiian fingerlings. Had some on my breakfast cereal today. We grow them more for the landscaping qualities, but the fruit is a nice side benefit. They make for great shade on our concrete patio.
During the last week of October the banana trees were taken out and put away for winter. Come next April out they'll go again. We call it cheap entertainment and a bit of exercise. We often have folks stop and out Hubster goes to give a lesson in banana growing in our climate.