Jeff

Unfortunately there is not much you can do if the winds are really strong. If you have tall bananas out in the open they will probably get broken in half. I've had it happen many times just with wind gusts from typical severe thunderstorms. If they are planted near the house or trees and are sheltered some, you might have a better chance of them not getting too damaged. The great thing about bananas is even if they do get snapped in half, you can cut them at the breaking point and they will continue to grow and completely recover in no time (unless they were just getting ready to fruit!). The taller varieties are the ones that usually snap in half, the shorter varieties just get a lot of broken leaves. Best of luck to you!!

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Jeff in Costa Rica