Culture Poinsettia to choose loose and drainage good soil, matrix can use perlite, peat, vermiculite and river sand, do not have pests, bacteria, etc., can be properly disinfected.
Water Poinsettia should be well controlled. Large or small amount of water will cause discomfort. When the temperature is high, it grows fast, so it needs a lot of water. You can water 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 water is large, the leaves will fall off or rot. if the amount of water is small, the leaves will wither due to lack of water.
It is a kind of short sunshine plant. To control the sunshine within 12 hours, it can grow rapidly and flower bud can differentiate only when it receives proper amount of sunlight. When the flower bud develops, the involucral bracts should reduce the sunshine before they mature, or they will stop developing.
The suitable temperature for its growth is 18-25 ℃, the lowest temperature can not be lower than 16 ℃, otherwise its growth will be slower, if it is lower than 13 ℃, it will stop growing. The highest temperature can not be higher than 29 ℃, high temperature is also very bad for its growth.
1, disease: it can appear leaf spot disease, should spray medicament appropriately, still should strengthen indoor ventilation, pruning tool also should be disinfected at all times, lest increase infection source..
2. Insect pest: it will produce whitefly, which can be eliminated by medicament. It's better to put yellow armyworm board with oil in the room, and then lure it out and deal with it.
