The growth of iris needs enough light stimulation. It will thrive only when it grows in sufficient sunlight. The flowers will not be affected when they open. It can also withstand the environment of half shade. However, it needs to provide enough sunshine during the growth period and cannot grow in the dark and dark environment for a long time.
For the requirements of soil, it is necessary to ensure that it is loose, well drained, rich in humus, suitable for cohesive soil, and grows well in such soil.
The best temperature for planting is about 15 ℃. In autumn, it is best to keep around 10-13 ℃. The temperature should not vary too much, otherwise it will affect the growth. If the temperature is lower than 13 ℃, the growth period will be prolonged, but the flowers will wither easily.
Watering needs to be determined according to the specific situation. If you grow in the open, you can water once a week. If the temperature decreases gradually, the amount of water should be reduced gradually to keep the soil dry.
Add base fertilizer before planting to ensure good growth. Later fertilization can be applied according to the specific situation, and different fertilizers can be applied in different lands.
