Re: can it be too hot for containers, even really big ones?
I think they will do okay in containers. Some bananas will do better than others. My bananas in the hottest parts of the yard usually wilt during the day and they are in the ground so I would imagine they would wilt even more in pots.
Try and shade your bananas from direct afternoon sun. The good thing about pots is that you can easily move plants if they dont do well in a certain spot! If your banana never dries out, it shouldnt have much of a problem. Not sure how hot banana plants can handle, but my guess is that once you get to 110F, your dealing with some dangerous heat for potted banana plants in full sun even with water.
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Location: New York City, zone 7b
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