
You don't always have to do flowers to have interesting and colorful decor for a party. Think beyond and use plants or just foliage. The bonus of using plants is that you will most likely spend less for them than flowers and they will last a lot longer.
Currently I am loving the tillandsia's (Air Plants), they are a relative of the bromeliad (an epiphitic plant) and they do not require soil, just a periodic dousing with water and some spritzing in between. They come in a variety of colors and textures and make a great conversation piece. If you use them consider giving one as a gift to your guests at the end of the party.
Another great optioin are always orchids. There are so many varieties and colors now. My current favorites are the smaller (mini) varieties in shades of apricot / pink. They make a great simple centerpiece with lots of candles.
Plants aare also very "green" as they are good for the environment, and are compostable (for those whose thumbs are not so green) so you can feel good about your purchases.
*the photo shows three varietis of Tillandsia in a glass trifle bowl at Lekker Home. www.lekkerhome.com