First, the reason why camellia is bare
1, camellia soil is alkaline. When we conserve camellias, especially in the north, the water quality is generally alkaline, but camellias are suitable for growing in slightly acidic soil. If tap water is poured for a long time, the soil will gradually become alkaline soil. Camellia leaves will turn yellow, wither or even fall off and become bare in alkaline soil.
2. The air humidity is low. Camellia is a typical southern flower, which likes to grow in high humidity environment and be maintained indoors, especially in the north. Due to the hot weather in summer, high indoor temperature, dry air and heating in winter, the moisture content in indoor air is low and the air is dry. In a dry environment, Camellia leaves will wither for a long time, and in severe cases, all the leaves will fall off.
3, improper watering leads to rotten roots. When water often accumulates due to improper watering, the soil will be in a moist state for a long time, which will make the roots of Camellia difficult to breathe, turn yellow or even black, and eventually rot, resulting in empty roots or rotten roots, that is to say, water and nutrients can not be transported to the stems and leaves through the roots, and all the leaves will fall off.
4. A disease happened. Due to improper indoor maintenance, poor ventilation or lighting, short plants, insufficient robustness and poor disease resistance, diseases will occur, among which defoliation will occur, leaves will slowly turn yellow and eventually fall off.
5. Fertilizer nutrients are insufficient. Camellia needs more fertilizer because of its lush growth and dense plants. If the camellia we raise lacks fertilizer, it will have yellow leaves, and in severe cases, all the leaves will fall off.
Second, the method of treating bare camellia
1, keep the soil acidic. To ensure that the soil of camellia is acidic, we should start with the water quality and irrigate it with acidic water. We can collect rainwater when it rains or snows, and irrigate camellia with the collected rainwater, which can not only ensure the acidity of water quality, but also provide trace elements.