(1) soil: it is necessary to select the soil that is loose, permeable, well drained and rich in nutrients. Specific choice of sandy loam.
(2) light: Generally speaking, poinsettia prefers light and needs to provide sufficient light. Otherwise, the plants will turn yellow and lose their leaves. In autumn and winter, it's best to provide full day photos, and the worst is half sunshine. In summer, it can be properly shaded. During flowering, more need to provide sufficient light, can be placed in a bright place.
(3) temperature: it likes warmth. The most suitable is 15 to 25 degrees. In winter, the temperature should be above 15 degrees, or the plants will fall leaves and freeze to death. But it's also not resistant to high temperature. It has to cool down in summer.
(4) fertilizer: during cultivation, some basic fertilizer can be mixed into the soil. In addition, in the growing season, it can supplement fertilizer, pay attention to the balance of nitrogen, phosphorus and potassium fertilizer. Pay attention to a few times. In flowering, reduce nitrogen.
(5) watering: it likes to be wet and grows fast, so it needs to provide sufficient water. Water more in summer, but stop in rainy days. It's also needed in autumn and winter, about once a day or two. Don't get water on the leaves or flower buds when watering.
There is no fixed interval for its change of basin. Can judge whether to change according to its height. When the height is more than 40-50 cm, it needs to be replaced with soil and a larger basin. If the height does not reach this high, it can not be changed temporarily
