Iris flowers have green leaves and large and strange flower shapes, just like graceful butterflies. They are one of the important flowers in the garden. Irises have rich colors and unique flower types. They are good material for flower bed and courtyard greening. In some countries, people use this flower for perfume.

The main color of iris is blue purple, which has the reputation of "blue witch". Iris is named after the goddess of the rainbow in Greek mythology, Iris. She is the messenger of the gods and the world. Her main task is to bring the souls of good people back to heaven through the rainbow bridge between heaven and earth.

Another legend is that the goddess of the rainbow once saved the life of King Frank in the 6th century. When he saw the rainbow rising from the Rhine River, he knew that the river was shallow enough, so he crossed the river and escaped the pursuit of the enemy.

France is a country of flowers, and its capital Paris is known as the "flower capital". Irises are regarded as the national flower of the kingdom of France. It is said that when Clovis, the king of the first dynasty of the French Kingdom, was baptized, God gave him a gift, that is iris. In France, irises are a symbol of light and freedom. Monet also planted iris in Giverny garden, and took it as the theme, leaving a picture of iris full of natural vitality and rhythm on the canvas.

Irises represent the messenger of love in China, implying long-term yearning. Europeans think they symbolize the freedom of light. In ancient Egypt, irises were a symbol of power and eloquence. The Israelites generally believe that the yellow irises are the symbol of "gold", so they have the custom of planting irises for hoping to bring wealth to the afterlife. In addition, irises are also the flowers of life, which represent making life better.