Irises are of great ornamental value. There are more than 300 varieties in the world, and there are more than 60 kinds in China. Irises can be divided into two categories according to their underground stems:
When we see that the underground part of iris is root like, or rhizome like, this is the perennial iris. Iris is a kind of perennial plant. Its leaves are sword shaped and its flower stems are upright. The most common ones are German iris, yellow iris, etc. The flowers of iris in Germany are blue, white, purple and so on. And yellow iris is yellow
There is also a kind of perennial iris, which is called the evergreen iris because the upper part of the ground will keep green when most varieties wither due to winter.
When you see that the underground part of iris is bulbous, this is the bulbous iris. Bulbous iris likes to be warm, so it can be promoted in the greenhouse. It includes Dutch iris, yellow Denver iris, and reticulum iris. Its color is blue, purple, white, etc.
Bulbous iris is propagated by seed ball, a kind of seeking to plant and bloom in one year and then fall down. In the process of producing new ball, eldest son ball, through breeding, it will bloom again.
