Flowers are a staple in every celebration, as decor or gifts to brighten someone's day; these are the most expensive flowers in the world.

Before coming to San Francisco, Insook never worked a day as a florist. Today, she's been selling bouquets for 45 years. But not for long.

People treasure orchids because of their amazing exotic looks yet the plants present challenges when it comes to cultivation.

While there are between 25,000 and 30,000 orchid species, the most common—and the one most people will have at home—is the ...