1、 Soil

For breeding poinsettia, loose and well drained soil should be selected. Perlite, peat, vermiculite and river sand can be used as the substrate. There should be no pests, bacteria and so on. It can be disinfected appropriately

2、 Watering

Watering Poinsettia should be well controlled. Large or small watering will cause discomfort. When the temperature is high, it grows fast, so it needs to add a lot of water. You can pour it 1-2 times a day, or spray some water around appropriately to increase the air humidity. In other periods, water can be poured once a day or two. If the amount of watering is large, it will lead to leaf falling off or rotten roots; If the amount of water is small, the leaves will wither due to lack of water

3、 Illumination

It is a plant with short sunshine. If the sunshine should be controlled within 12 hours, it can grow rapidly and flower buds can differentiate only when it receives an appropriate amount of sunshine. During flower bud development, reduce the sunshine before the involucral bracts develop and mature, otherwise they will stop developing

4、 Temperature

The suitable temperature for its growth is 18-25 ℃, and the lowest temperature cannot be lower than 16 ℃, otherwise its growth will slow down, and if it is lower than 13 ℃, it will stop growing. The maximum temperature should not be higher than 29 ℃, and high temperature is also very unfavorable to its growth

5、 Precautions

1. Disease: it will appear leaf spot disease. It is necessary to spray the medicine properly, strengthen indoor ventilation, and disinfect the pruning tools at all times to avoid increasing the source of infection

2. It can be lured out of the room with yellow powder, and then it can be treated with yellow powder