Tropicallvr

Here's my take on the highland tropical species. I didn't really get it until investigating highland palm species from the Andes(Ceroxylon, Geonoma). They basically are only adaptable on the the west coast coastal climate of the US(Oregon south to somewhere north of LA). The cool US coast is a great climate for those year round cool loving plants similar to various tropical highlands where the temps stay pretty much constant(not too cold, not too hot). The palms from PNG mostly haven't been tried, but they would probally prefer climates like New Zealand, Coastal west US, Highland Tropics, maybe southern UK, but then it's hard to say for sure.
They may also prefer certain soil too? Like well draining maybe?
Since most bananas do better in the East coast climate this one may turn out to be one of the gems of coastal OR, CA.
I have seen a video of a enourmosly tall shaded bananas on MT Kiliminjaro in Africa, but I couldn't tell at what elevation they were.