Tropicals & Tender Perennials: Beautiful Bloom -of what?, 1 by AuntB

AuntB wrote:
This is the 4th bloom it's put out- the leaves hid the first three so they were shriveled when I found them, I've been paying more attention... it makes me want to pollinate and propagate... (like I need anymore plants to winter-over in Zone 5b).... I do plan to experiment with this one over the next couple of years to see if I can make it think it is hardy in my backyard. Anybody wanna guess what kind it is?