Averrhoa carambola commonly called Starfruit is a widespread native to the asiatic areas of the Philippines, Indonesia, Malaysia, India, Bangladesh & Sri Lanka. It thrives very well in the South Florida climate and is even tolerant of our poor soils. My neighbor (thank God, it is prolific) harvests much of the fruit and uses it in a juicer. The past two winters caused no ill effects to my tree. I am unaware of its northern boundaries. I suspect it would have done well in the St. Pete / Tampa area until the last two cold seasons. Is anyone growing Starfruit up yonder?