Rieger Begonia can not grow and blossom without adequate light, winter sunlight is relatively mild, not particularly strong, so you can increase the light time, or even achieve all-day sunshine.Through light irradiation, it can not only synthesize nutrients to promote growth, but also improve the temperature of the plant itself.
The most suitable temperature for the growth of Rieger Begonia is about 18-22 , and the temperature in winter is far from enough, so we should take good measures to keep warm and improve the temperature in the growing environment.In winter, it is better to move indoors for overwintering, the lowest temperature can not be lower than 5 C, and it is better to keep above 10 C.
The growth is very slow in winter, so watering needs to be controlled. You can't water a lot. You can judge whether to water by the condition of the potting soil. Wait until the soil is dry before watering. The amount of watering should not be too much. If the soil is too wet, bacteria will grow.
Before winter, organic fertilizer can be applied to the plants to provide nutrients, enhance the disease resistance of the plants and improve the resistance.Fertilization can be suspended in winter, and if the indoor temperature is more suitable, appropriate fertilization can also be applied.
Although it is necessary to move Rieger Begonia indoors in winter, it should not be placed in front of heating equipment, and windows should be properly opened at noon for ventilation.
