What is the reason why camellia has no leaves?

Friends who have raised camellia should know that because camellia is a southern flower, they love humid environment very much. At first, the camellia was fine, in bud, with lush green leaves, and looked full of vitality. However, it is very distressing to find that the buds begin to dry up slowly, the leaves turn yellow and become bigger, and even the leaves fall. How should they be raised to grow normally?

It is not easy to raise camellia on the balcony, but it can't be said that it is not good. As long as the balcony is well ventilated and reasonable, it can still be raised. There are mainly the following points:

1, prevent water from rotting roots in rainy season.

The air humidity in the rainy season in southern China is very high, and there are many rainy days, so the soil in the basin is easy to be wet for a long time. Camellia loves humidity, but it is easy to rot and die in an excessively humid environment. Therefore, in rainy days, camellia should be placed in a ventilated place, and it is not advisable to leave water in the basin. Also pay attention to the ventilation of the drain hole of the flowerpot.

2, high temperature resistance, dry resistance

The most difficult thing to raise camellia on the balcony is that the weather is hot and the air is dry. In summer, the cement balcony can reach 70 degrees Celsius, which seriously threatens the survival of camellia. At this time, it is best to build a rockery with water circulation near camellia. Or a pool, put some stones in the pool, put 3 cm deep water, and then put camellia on the stones, which can not only cool down, but also increase the air humidity.

At the same time, it is necessary to avoid burning leaves caused by direct glare, and it is necessary to shade properly to ensure the normal growth of camellia.

3. Frostbite prevention

Camellia still has some drought resistance. In South China, perennial camellia can normally overwinter at -3℃, but for young plants, it should not be lower than 0℃, which is easy to damage roots. Camellia is generally cultivated in the north. We need to move indoors from June165438+1October, and we need to move into the greenhouse from June 65438+February, and we can't move out until March next year.

4, watering management

Camellia likes acidic soil and water, and the most ideal water for watering Camellia is rainwater, which is rich in nutrients and can promote the normal growth of Camellia. In the northern region, there is little rainfall after autumn, and most of the water can only be tap water. Chlorine in tap water will alkalize the soil, which will endanger the normal growth of camellia in the long run. The best solution is to put tap water on the balcony for 2~3 days, evaporate the chlorine in the water and then water the camellia.

5. Fertilization management

Camellia likes fat and is afraid of coarseness, so it should be applied thinly and diligently, and fertilized once every two months in spring and autumn; In two seasons in Xia Dong, camellia grows slowly, basically in a semi-dormant state, and requires little fertilizer, so it can be fertilized without or with little fertilizer. Generally, proper application of some nitrogen fertilizer during the growth period can make the branches and leaves grow more vigorously, such as homemade rice washing water and fermented yogurt, but it must be diluted 20~50 times with water before watering the flowers. In flowering period, nitrogen fertilizer should be stopped and phosphorus and potassium fertilizer should be applied frequently to breed strong buds.