The iris's history is rich, dating back to Ancient Greek times when the Greek Goddess Iris, the messenger of the gods and the personification of the rainbow, acted as the link between heaven and earth. During the Middle Ages, the meaning of irises became linked to the French monarchy, and the Fleur-de-lis eventually became the recognized national symbol of France.
Through its intricate history, the meaning of the iris has come to include faith, hope, and wisdom. In some parts of the world, the dark blue or purple iris can denote royalty, whereas the yellow iris can be a symbol of passion. Irises may also express courage and admiration. Iris have rich meanings, and when given as birthday gift, it can convey deep sentiments.