1、 When does it open

Iris is a very beautiful flower. It blooms every spring, about April to June. Different regions have different climate and environment, and the flowering time is also different. There is a gap before and after the time. When flowering, because of different varieties, there are differences in flower color and shape, but they are highly ornamental and have a faint aroma. After flowering, the opening time of a single flower can last about a week, and the flowering time of the whole plant can last more than a month

2、 How to maintain flowering

1. Ensure sunshine: during the flowering period, the factor of sunshine cannot be lacked. See light normally and ensure the irradiation of light. However, pay attention not to see strong light. Strong direct light will burn the petals and cause scorch and dryness

2. Control watering: after flowers bloom, you should pay attention to control watering. Don't give too much water to prevent waterlogging from leading to rotten roots and affecting normal flowering

3. Reasonable topdressing: the opening of iris flowers will consume a lot of nutrients. We should pay attention to topdressing to meet the nutrient needs of good flowering

4. Humidity and temperature: maintain the humidity and temperature during the flowering period, control the humidity at about 75% - 80%, and keep the temperature at about 16 ℃ - 20 ℃