Sunflower like to grow in a warm and humid climate, which is not suitable for the cold climate. Therefore, in winter, we need to ensure that the indoor temperature is more than 10 degrees, so that it can better survive the cold winter. If the temperature is too low in winter, the leaves of sunflower will be frostbitten and even affect the survival rate of the whole plant.
In the daytime, the sunflower should be placed in a place with good lighting conditions and ventilated environment to grow, so as to avoid strong sunlight. The sunflower grows best when the temperature is between 20 ℃ and 35 ℃.
In winter to reduce watering, keep the soil dry, so that it can better sleep.
In winter, if the growth of sunflower is relatively weak, or the growth is not good, the fertilizer should be stopped in time.
It is necessary to keep the temperature above 8 ℃ in winter night, which is good for the survival of plants. Long term survival in the environment below 5 degrees will lead to frostbite and death. When growing vigorously, we need to keep the soil moist, maintain a certain humidity, and increase the times of fertilization accordingly, so as to meet the nutritional needs of the growth season. To clean the leaves in winter, you can often clean and wipe the ash on the leaves, always keep a beautiful state.
