Gabe15

I agree that digging it up in the fall and trying to get it to continue growth is not the best idea. It's very stressful for the plant, and you would be doing it right before putting it in unfavorable conditions, thus stressing it even more and increasing the chance it might not recover.

If it were mine, I would just put it in as big a pot as you can manage and just leave it in there it's whole life. You can bring it it in and out as the seasons change with minimal shock to the plant. Planting in the ground is definitely the best choice for large plants like Gros Michel, but in Ohio it's never going to be able to grow normally in the ground anyway since you have to dig it up before winter, and if the goal is to one day get it to produce any fruit at all, I think your best chance at this is to just leave it in a large pot. It will be a smaller plant than it would be in the ground theoretically under ideal conditions, but since you don't have ideal conditions for growing in the ground, a smaller plant with a smaller bunch is going to be a lot more fruit than no fruit if you continually dig it up.

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Growing bananas in Colorado, Washington, Hawaii since 2004. Commercial banana farmer, 200+ varieties.