1. Temperature: the most suitable temperature is about 18 degrees, too high or too low. Generally speaking, in the case of 13 degrees or lower, it will prolong its growth period and make the flowers easily wither. And too high temperature will also have an adverse effect
2. Light: Iris likes light. It can stand half shade a little, but too dark environment has bad influence on its growth and flowering. Therefore, in order to meet its requirements, in the case of not so strong sunlight, try to let it receive more exposure. Under the strong sunlight, shade is needed.
3. Watering: Iris likes to be wet, but it is very afraid of waterlogging. Sufficient water can not only meet its own needs, but also reduce the concentration of fertilizer to avoid fertilizer damage. Another important task is drainage system, to avoid too much water
4. Fertilization: Generally speaking, there should be no base fertilizer in the soil, otherwise the salinity will be very high. After that, top dressing is OK. Be careful not to use the fertilizer containing fluorine easily.
1. Reproduction: it can be propagated by seed ball. If the seed ball can not be planted immediately, it needs to be stored in a low temperature environment, generally around two degrees is appropriate, and maintain the appropriate humidity. Wait until the right time to plant, after planting, temperature and humidity are also very important two aspects.
2. Weeding: if weeds appear after plant planting, it is necessary to clean them. Herbicides can only be used if the bulbs are deep enough, and cannot be used if the bulbs are very shallow. In addition, we should pay attention to the number of herbicides used every year, preferably not more than twice.
1. Disease: "seed ball rot" is a relatively common disease, which is transmitted by a spore. Spray and reduce air humidity. Still have "grey mould", can cause growth to be blocked, the injury degree of leaf is more serious also, use medicine in time, and avoid strong light..
2. Pests: there are "nematodes", which are not only harmful, but also easy to spread some other diseases. Insecticides can be used and the soil can be disinfected.
1. Flower language: the flower language of blue and purple iris includes "Miss", "good news", etc.
2. Toxicity: it is toxic, the whole plant is toxic, but it is very slight.
