The common reasons for the yellowing of Cymbidium leaves are to master the methods of topdressing edible fungi.

Magnolia is the city flower of Changchun in China, which is deeply loved by flower friends because of its high ornamental value and long life. Gentleman orchid is known as the flower of wealth, usually once a year, flowering before and after the Spring Festival. There will also be the problem of yellowing leaves in the process of orchid culture. The following editor introduces the common causes and treatment methods of yellowing leaves.

Common causes of yellowing of Cymbidium leaves

Common causes of yellowing of Cymbidium leaves

The common reason for the yellowing of the leaves of Cymbidium is that excessive watering leads to rotting roots.

Cymbidium is drought-resistant and not resistant to humidity. If it is watered too much, it will lead to stagnant water in the basin, make the root rot, and then cause the leaves to turn yellow.

Treatment method:

1. If the root system does not rot, you can put the orchid in a cool and ventilated place and stop water for 3-5 days to dry the basin soil before follow-up maintenance. If the root system has rotted, the magnolia should be removed, cut off, soaked in 0.1% potassium permanganate solution to dry, and then re-pot.

2. When watering, it is necessary to keep the basin soil dry and thoroughly watered. Watering is best at 8-9 o'clock in the morning, drying tap water for 2-3 days before using. For 1-2-year-old orchids, water can be watered once every 5-7 days, and orchids for more than 3 years can be watered according to the size of the basin and the dry and wet condition of the soil.

The second common reason for the yellowing of Cymbidium leaves is excessive fertilization.

If the magnolia is fertilized too much, the concentration is too high, or if the fertilizer is not mature, it will lead to yellow leaves. First of all, stop fertilization and wash the soil with heavy water to reduce the soil concentration; if excessive fertilization has caused rotten roots, immediately change the soil, soak the roots with 0.1% potassium permanganate solution for about 20 minutes, rinse with clean water, cut off the rotten roots after drying, apply plant ash on the wound, and then replant.

The third common reason for the yellowing of Cymbidium leaves is lack of light.

If the magnolia is in a shady environment for a long time, it will cause the green of the leaves to gradually fade, and the leaves will gradually turn yellow. You can use fluorescent lamps to replenish the light to the orchid, or transfer the orchid to the place of scattered light and slowly receive the light, and the yellowing leaves of the orchid can be restored soon.

Common causes of yellowing of Cymbidium leaves

Introduction to the growth habits of Cymbidium:

Magnolia is not only afraid of heat but not cold-resistant, like semi-overcast and humid environment, afraid of strong direct sunlight, the best temperature for growth is between 18-28 ℃, below 10 ℃, more than 30 ℃, growth is inhibited. The gentleman orchid likes the ventilated environment, likes the deep, fertile and loose soil, and is suitable to grow in the loose and fertile slightly acidic organic matter soil.