Sally -- consider ordering EARLY -- like a couple of months ahead - Valentine's is a HUGE holiday for florists. Check around. Not suggesting orange by posting this, just showing some of the types of flowers that are good winter bets.
Sparkling Winter Wedding Board ideal not only for a Christmas or New Years wedding but also for that special celebration at this time of year, even your own Christmas table (maybe leave the big white dress and buttonholes off the shopping list though!
Purple Hues for Winter Wedding Color Ideas and Bridesmaid Dresses 2014