They will take some below freezing temps for a short while. I think somewhere around 23º is the cutoff temp for our Bearss lime. I move them into the greenhouse for the winter and they have made it for several years now.I doubt it. I have to baby mine.
Note that lemons and limes, like apples, will not match the mother plant because they are hybrids. You may get fruit, but it could be different. Key limes are the exception.
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