Last time we were here, the house that we stayed at was in a different place on the island, and the beach access we used had one that had escaped from one of the bordering yards and was growing everywhere. I got some cuttings and started them up one tree in the GH and 2 trees outside in the yard. You need to get ones that have already started to split in you can, once they are a certain size they will stay that size as they grow up the support and get larger. Not that you can't grow one like this from those small hanging baskets you get, you can, but it will take a lot longer. Starting bigger gets more of an instant gratification. There is one here up on the University campus that is decades old and lovely, and they have a huge one at the Butterfly Rainforest museum on campus.