Flower trade to power Yunnan fortunes

Those who buy flowers for Valentine's Day may not realize that eight out of 10 roses come from the Kunming Dounan Flower Market in Yunnan province, the largest flower market in China.

Yunnan has become a base for cut-flower production and exports, and it leads the country in flower sales and output.

The province in Southwest China harvests an estimated 7 billion flowers each year worth 30 billion yuan ($4.8 billion), according to the Yunnan Flower Association.