Glad to be of help, especially since you were so kind to let me use your photos for our garden newsletter!
I planted some in the garden where I had gingers already. Fall came and I couldn't tell the difference in them. I'm going to let them all come back up to see if I can sort them out. I think the best turmeric is found here in late fall. That's when it dies back and is dug up. The ones I found this spring were much smaller and not as plump. Not sure if they were maybe imported from somewhere else.
Hope you'll plant some and see if they bloom for you. A few years ago one of my Mexican friends gave me some "ginger" tubers that she'd been given to plant. After finding the turmeric in the store, I'm fairly sure that I already have turmeric growing with the other gingers. The tubers she gave me were much smaller than the store ones, but I'm going to "sacrifice" some and dig them up early to see. They seem to be the first to come back in early spring.