1、 Light irradiation

In order to ensure the growth and flowering of Rieger Begonia, sufficient sunshine is necessary. In the process of growth, it is necessary to maintain the sunlight, which can be placed on the balcony for maintenance. Normal exposure to astigmatism is of great help to flowering. In winter, the intensity of sunlight weakens and can accept full-time sunlight. The light in summer is too strong. At this time, it cannot be maintained according to the normal method. It needs to be shielded. You can use items to cover it

2、 Moisture application

In general, water every 3-5 days to ensure that the demand for growth is maintained. The evaporation in summer is relatively vigorous. It is necessary to increase the application of water. Water can be poured once a day. Watering only needs to meet the demand, but it can't supply too much water or ponding

3、 Apply fertilizer

Pay attention to fertilization during the growth period. During vigorous growth, fertilization can be carried out every half a month. Different periods have different requirements for fertilizer. Nitrogen fertilizer can be used at seedling stage, and phosphorus and potassium fertilizer can be added before and after flowering

4、 Temperature requirements

The suitable temperature for growth is about 15-25 degrees. This growth range is suitable for growth. It is afraid of cold. In winter, it should pay attention to cold prevention, not less than 15 degrees