Orchids can be found almost anywhere in the world, although 10,000 of the approximately 30,000 varieties are found in tropical rain forests. The rain forests of Central America, Puerto Rico, Ecuador, Borneo and Costa Rica are host to wild orchids. Orchids do not grow in extremely arid and frigid locations.
Orchids can grow underground, on rocks or in the soil, but most grow on other plants and trees. They are a diverse species in both size and color. Some orchids are very small, with nickel-sized blooms. Others have blooms that are 12 to 14 feet long. Orchids come in a variety of colors, with the exception of black.