I'd be surprised to see one survive an extended freeze. They will grow to 20' in the Caribbean and at least half that in zone 10.

I have had no trouble growing the dwarf poinciana, Caesalpinia pulcherrima, in my Zone 9a garden the last four years. I've shared seed with neighbors whose plants are doing just fine, so I doubt that my success is owed to an especially favorable microclimate. Even if it does not die to the ground, as it did this past winter, I prune it to the ground in spring to produce a more compact habit (3-5 ft).

They have some beauties at the Botanical gardens nearby.

Thanks for the feedback, I think it is what I was looking .. just that the information was different from what I found online.. I planted it today in the ground and will see how it goes...