I am doing an experiment with this palm this year and will keep updates posted as to how much cold it can take. I live in zone 8/SC AL. I have it planted next to my dock/farm pond and is protected by my home to the north and west. The dock faces SE. I will be protecting it in November with a thick mulch of straw and leaves and a cage as I do the more tender banana's on my acreage. We shall see how this goes so check back throughout the year. Right now it is about 5' tall and happy as a clam under a willow tree not far from a fan palm, which I am also experimenting with. Unfortunately, I lost the tag. It is not a Trachy as I have two of those out front and they have been doing great for the past seven years even though they are planted in a low spot and face NW. They are protected by a hedgerow of trees, though, so that helps. They were small trees in one gallon pots when purchased and are now about 8' tall. Very healthy with no problems in all these years. Even when we got down to 9 degrees one year for two nights. I just threw a blanket over each of them.
I hope others here will start experimenting with tender tropicals and reporting their results here on a regular basis. It can only help us all in the long run.

Later gator!

Make your words soft and sweet; you just may have to eat them someday.