Many novice gardeners ask azaleas, when they were first bought, the flowers were bright in color, but they may lose their leaves after a month, and almost every leaf is dry, even half of New Ye Gang is dry. What's going on here? What should I do? The following uncle gardener will analyze the causes and solutions of dead leaves of rhododendron branches for you:

1, air humidity is too low.

Rhododendrons like sunlight, but they are afraid of direct sunlight. It is shade-tolerant. The growing environment is generally semi-cloudy, and the sunshine is also strong during the high temperature period in summer. It needs hibernation and maintenance. It should be placed in a semi-shady and ventilated place to increase air humidity. Pot soil should be dry and wet alternately, neither too wet nor too dry. Keep the basin soil moist during the growing season, and it is easy to shed leaves when it is dry, which will affect the growth and development.

2. Too much water is caused by too careless ventilation.

Because azaleas like humid environment, there can be a breeze in the environment, but they must not be placed in the tuyere of strong wind, otherwise they will lose too much water and dry their leaves.

3. It may be caused by high temperature and low humidity.

You need to put azaleas at a low temperature (not less than 3 degrees Celsius) to increase the humidity locally and alleviate the phenomenon of dry leaves falling off. Another reason is that if the azalea is transplanted from the shed to the flowerpot by the florist before flowering, the root system of the azalea may be damaged and it will take a long time to recover.

Photo: Rhododendron potted plants

4, metabolism leads to physiological defoliation.

If the flowers are too dense, the old leaves will be removed without timely nutrition supply or new leaves. This is a normal state and can be solved by normal soil replacement and fertilization. Domestic rhododendrons generally bloom and germinate new leaves in April-June, and the old leaves will fall off. Pruning and shaping once after flowering, cutting off dense branches, cross branches, twigs, drooping branches, creeping branches and insect branches, is not only conducive to ventilation and light transmission, but also can promote strong branches and reduce deciduous leaves.

skill

1, potted azaleas should be placed on the southeast balcony, ventilated and move as little as possible. Without ventilation, it is easy to suffer from black spot disease and a lot of fallen leaves.

2. Rhododendron doesn't need to be plowed every year, usually once every two to three years to minimize the damage to the root system. The time should be after the flowers wither or fall, and topaz should be sprayed at the same time to prevent diseases.

If you plant flowers, you can go to the gardener's forum: bbs.huajiang.cc, and sing and laugh all the way. The road to planting flowers is really lively!