How to grow poinsettia in winter

temperature

When the outdoor temperature drops to 15℃, the poinsettia can be moved indoors and a layer of protective film can be added at night. Control the temperature at 15~25℃. If the temperature at home is low, you can turn on the air conditioner to increase the temperature. If the temperature is too low, the leaves of poinsettia will curl up and then fall off. When the temperature reaches below zero, the leaves will quickly turn white and mold will grow. Be sure to protect the green leaves to avoid "falling off" (the leaves below the branches fall off).

Enter the room at the right time

Do not bring it indoors too early, otherwise it will cause excessive growth. It should be around late October in the north and early November in the south. After moving indoors, it is necessary to ventilate and add light regularly, or place it in a well-ventilated place. The indoor humidity should not be too high to avoid fungal infection.

Preventing Poinsettia Freeze Damage

Before winter, it is necessary to train it to resist cold: stop nitrogen fertilizer in autumn, increase light and reduce shade. In addition, spray streptomycin once a week in early October for three consecutive times, and then once a month to effectively prevent diseases and pests.

No pruning

After entering winter, it is the period of flower bud differentiation of poinsettia. Do not prune at this time, even if the branches and leaves are too dense, because if you are not careful, the flower buds will be cut off and flowering will be affected. In addition, phosphorus fertilizer can be applied to promote flower bud differentiation.