I'm wanting wildflowers-especially big sunflowers- for my winter wedding in Feb 2012. my FI picked Colorado but I won't give up my sunflowers

All the florists I've alked to up there just basically laugh at me for wanting those in Feb. I don't care if they think it's tacky bc it's not the right season- I need help!
This Texas gal needs some sunflowers for her big day!!
any ideas??