1、 Temperature

The ruler is native to the tropical and subtropical regions with high temperature. It can withstand the heat but is afraid of the cold. When the temperature is lower than 10 ℃, the ruler will suffer freezing injury. When the temperature is lower than 10 ℃, the ruler will suffer freezing injury

At 5 ℃, the stem of the ruler is easy to rot, so it's best to put it in the greenhouse in winter. If there is no condition, it can also be placed in a warm place indoors. Wrap the flowerpot with the plants with plastic film, which can also serve as a warm place,. Cotton and light bulbs can also be used to help keep warm. The temperature around the plants should be kept at about 10 ~ 22 ℃

2、 Illumination

The ruler should avoid direct exposure to the sun in summer, but keep a certain amount of sunshine in winter. If the light is insufficient, the ruler will be malnourished. In the windless weather with better weather in winter, when the temperature is relatively high at noon, you can untie the plastic film, put the plants by the well lit glass window in the south, let the sun shine, and turn the flowerpot later to ensure that the whole plant can shine evenly on the sun

3、 Moisture

The ruler has relatively strong water storage function. Especially in winter, when it is in dormancy, the physiological ability of the ruler will be weakened and the water consumption will be reduced. At this time, watering is basically unnecessary. If watering is too much, once it is injured or the temperature is slightly cold, the plant will get rot. The large amount of water stored in the ruler can ensure his self-sufficiency for several months in winter. If you are really worried, you can water it once every 30 days

4、 Humidity

Although there is a lot of moisture in the body of the ruler, it is also necessary to maintain a slightly humid air humidity. Some people are afraid that the ruler is too cold and put it next to the air conditioning room or stove. As a result, the ruler is dried alive because the temperature is too high and the air humidity is too low. If the air humidity is too dry and the temperature is relatively high, you can appropriately increase the frequency of watering or buy a humidifier

Pay attention to the above points. The sky measuring ruler of all flower friends will be able to survive the winter safely and produce beautiful flowers in the coming year. Finally, there is a more important point. When opening the plastic film in spring, we must prevent the cold of late spring