palmtree

I also agree that it really depends. Some of my bananas ask for more water than others. And humidity, soil type, temperature, etc is a huge factor. During the summer I soak all of my bananas once a day and since my ice cream banana is in full sun, it still tends to wilt a little even with daily watering in the July heat (keep in mind that summers are very humid here so plants dont need as much water during hot spells as they would on the west coast where it is a little drier). This time of the year with all the rain we have been getting, I haven't been watering at all, but 80s are in the forecast for the weekend with lots of sun, so I will be soaking all my plants including the bananas.

When I was in San Diego, I found the weather to be kind of cool so I think soaking it once every 2 days when established in the ground is good enough. If you get a heatwave, make sure it stays moist. When you notice the bananas leaf growth slowing down during the winter, slow down on watering so it can go semi-dormant. Dont let it wilt though.

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Location: New York City, zone 7b