Organic flowers for Valentine's Day? Why some shoppers are buying green instead of red this year

Organic flowers for Valentine's Day? Why some shoppers are buying green instead of red this year
http://latimesblogs.latimes.com/home_blog/2010/02/sustainable-organic-flowers-valentines-day.html 
 
"When Jim Tripp sends a Valentine's Day bouquet to wife Lauren, he makes sure the flowers are grown locally.

"It's important to support organic farmers and make a conscious choice about where our money goes," says Tripp, Aramark's general manager for sports, entertainment and conventions at the Anaheim Convention Center. "Every time I pull out my checkbook, I can make a difference."

According to the Society of American Florists, 187 million roses are produced for Valentine's Day alone, but only a fraction are sustainably or organically grown. As the base of eco-conscious consumers grows, flowers are joining paints, cabinets, floors and cleaning products in the realm of green shopping.

The key question: What makes flowers green?"