How do camellias lose their leaves?

Camellia is a general term for many plants and horticultural varieties of the genus Camellia in the Theaceae. It ranks eighth among the "ten famous flowers" and is also one of the world's most valuable flowers and trees. It is cherished by the horticultural community all over the world because of its beautiful shape, bright green leaves and colorful flowers, but it is often lost in the process of breeding. Let's take a look at how the leaves of the camellias fall off.

Too much watering leads to the loss of leaves

When camellias are cultivated, in order to grow quickly and blossom as soon as possible, a large number of camellias will be watered, but they do not realize that this is a wrong method. Because although camellias need water supply to grow well, if they are watered too much, there will be stagnant water in the basin, which will make the roots of camellias breathe poorly, and the soil is too moist and rotten roots, resulting in the loss of leaves. Therefore, when watering camellias, we must pay attention to a certain amount, the right amount of watering, will play a positive role in its growth.

Diseases and insect pests lead to the loss of leaves

There are many diseases and insect pests that have adverse effects on plant growth, such as anthrax that makes camellias lose their leaves. Anthracnose is a common disease, which mainly occurs in the leaves of camellias, which will produce disease spots on the leaves of camellias. with the aggravation of the disease, the disease spots will gradually expand, and in serious cases, they will lose their leaves and affect the whole plant. make the plant die. Therefore, when cultivating camellias, we must do a good job in the prevention and control of diseases and insect pests, strengthen management at ordinary times, enhance plant disease resistance, spray chemicals in the early stage of the occurrence of diseases and insect pests, and pay attention to cleaning up the withered branches and leaves of camellias in winter to reduce the source of infection.

Poor ventilation leads to the loss of leaves

Sometimes poor ventilation will cause camellias to lose their leaves, especially in winter, when camellias are placed indoors for a long time, poor ventilation or poor air quality will cause camellias to drop their buds and leaves. Therefore, when cultivating camellias, especially indoor camellias, we must pay attention to ventilation and keep the air fresh.

A sudden change in the environment leads to the loss of leaves

When cultivating camellias, a sudden change in the environment will lead to camellias not adapt to the abrupt environment, because camellias have adapted to indoor light and other conditions, suddenly moved out of indoor light and temperature have changed, some of the old leaves will fall off. When this phenomenon occurs, you should quickly move the camellias to the outdoor semi-shade, spray more water and stop fertilizing, which can be slowly recovered. If you want to change the culture environment of camellias, it is best to have a step-by-step step to make it slowly adapt.

Expansion: the culture method of camellia

1. Soil: Camellia has high requirements for soil. Generally, its soil contains high humus, its PH value is between 5 and 6.5, and it is slightly acidic. The best soil configuration is 50% of mountain soil, 40% of sawdust or edible fungus residue, 10% of cake fertilizer powder or livestock manure and phosphorus fertilizer powder.

2. Lighting: Camellia bogey strong light, must pay attention to sunlight when planting, sufficient light is required in spring and autumn, but it must be avoided by direct sunlight in summer, as long as it is exposed to strong light for too long, it is easy to die.

3. Temperature: Camellia is neither cold-resistant nor heat-resistant, the most suitable temperature is 18-25 degrees, so the ambient temperature should not be too high or too low, otherwise it will affect its growth. In winter, the indoor temperature must be above 3 degrees, if it is lower than 0 degrees, it will be frostbitten.

4. Watering: camellias like a humid environment, not too dry, not too wet, not dry and wet, more watering in spring, watering both morning and evening in summer, autumn and spring, it is best to water before and after the plant in winter.

5. Fertilization: Camellia is more fond of fertilizer, but there is also a degree of fertilization, must not be too much, generally in the nearly half a year after flowering, fertilization about 3 times, once in winter, in order to make the flowers more beautiful, it is best to put more phosphate fertilizer.

6. Pruning: the pruning of camellias is very important, generally cutting off the branches and diseased and weak branches that affect the shape of the tree, as well as the arrangement of buds, once the buds are too dense, they should also be combed, and the flowers should be picked in time after withering, which can reduce the consumption of nutrients.

7, turn the basin: Camellia usually turn the basin every two years, changing a large basin is beneficial to its growth, the best time to turn the basin is in April, do not remove all the old soil, but also add a small amount of base fertilizer to it, and then water it.

8, diseases and insects: Camellia is easy to get sick, the common diseases are black mold and anthracnose, at this time only need to spray 0.5 degree Bordeaux liquid, the pest is mainly tea tip moth, at this time the main cut off the tip of the insect.