Tropicals & Tender Perennials: 2 questions for you experts, 1 by DebinSC

DebinSC wrote:
First question: Is this (photo) Curcuma alimatifolia (Siam Tulip)?

Second question, I have a curcuma zedoaria that I planted last summer. It did great, died down over winter, came back in early June. The foliage is now about 18" high, leaves about ..mmmm..10" long. If it were going to bloom, it would've done so by now, correct? Should I ever expect it to bloom in my zone (8). If so, any suggestions to encourage it? It's in part sun.

Thanks!
Deb