1、 Ramet method

1. Selection of plants: appropriate plants should be selected for the ramet propagation of iris, which requires good growth status and adult plants that have grown for 3-4 years. Such plants have strong tubers and contain nutrients. The ramet survival rate of such adult plants is high, and the ramet survival rate of too small plants is low

2. Split tubers: take the selected plants out of the flower pot, carefully observe the position of the roots, select a clean and disinfected knife, and split the tubers at the bottom, or break them directly by hand to ensure that each plant cluster has 1-2 leaf buds, so that the survival rate is high. After dividing into several parts, don't rush to plant. First put the tubers aside to dry. Pay attention that the incision can't touch water. You can apply plant ash on the incision

3. Prepare soil: prepare flower pots for cultivation and prepare soil suitable for growth. The soil shall be loose and breathable, contain certain permeability and mixed with certain organic fertilizer. After preparing the soil, it should be disinfected and sterilized first, and then used for cultivation

4. Plant the upper basin: when you are ready, you can plant the upper basin. Don't plant too deep. After planting, pour water once, and then pay attention to maintenance

2、 When does it split

Generally, iris is divided into plants every two or three years. It can be divided into plants in spring. At this time, the survival rate is higher