Many species grow on trunks and branches of trees and on rocks in tropical places. In cooler places they grow close to the ground. They probably grow around summer or at the end of spring because they need lots of rain and lots of sun. Orchids come in all colors but black. They may be streaked, striped, spotted, or speckled in black as well as in all other colors.
Orchids can be very small and very big.
Valerie A petunia is a flower that came from Argentina and Brazil to the United States. A petunia comes in more varieties of colors than any other flowering plant. Part of the nightshade family, the petunia comes in about 30 species. Petunias are grown in northern gardens as annuals. Most petunias are actually perennials.