What to do when orchid leaves turn yellow? Grasp 4 key points to easily grow orchids well
Orchids have always been one of the flowers that flower lovers most enjoy growing, but many flower lovers find that when they first start growing cymbidium orchids (Cymbidium), the leaves turn yellow and withered. Especially for those growing orchids for the first time, they do not know what to do, so what should be done when orchid leaves turn yellow? Now Mumu will analyze the causes of orchid leaves turning yellow for everyone, and how to solve orchid leaf yellowing!
1. Pests and diseases cause orchid leaves to turn yellow
Cause of yellow leaves
If an orchid suffers from pests and diseases, yellowing of the leaves will also occur, such as leaf spot disease, anthracnose, etc. Root rot can also cause leaves to turn yellow, and may even cause more serious harm.
Solution
Generally, when pests and diseases appear on an orchid, affecting the leaves is a gradual process. In the early stage of pest and disease onset, if it can be discovered in time, countermeasures can be taken. Based on the symptoms appearing on the orchid, determine which pest or disease the orchid has encountered, and choose the corresponding treatment measures. Spraying pesticide or manual control will alleviate the yellowing of orchid leaves.
2. Improper fertilisation causes orchid leaves to turn yellow
Cause of yellow leaves
If orchid leaf yellowing is caused by fertilisation, it is generally because too much fertiliser was applied at one time, causing the orchid's roots and stems to be burned and the leaves to turn yellow. This is because orchid growth actually does not need heavy fertiliser; when fertilising, apply light fertiliser frequently.
Solution
In terms of fertilisation, orchids need light fertiliser applied skillfully. Never apply concentrated fertiliser, heavy fertiliser, or undecomposed liquid fertiliser. On the second day after fertilising, water once with clear water to dilute the fertiliser and avoid fertiliser burn.
3. Light causes orchid leaves to turn yellow
Cause of yellow leaves
Orchids have relatively strict requirements for light. They like a relatively shady growing environment, are rather afraid of strong sun but cannot lack sunlight. Therefore, whether light is insufficient or too strong, orchid growth will be affected. With strong light, sunscald is likely to occur, causing orchid leaves to be damaged and turn yellow; with weak light, the orchid plant does not have enough nutrients, and the leaves are likely to turn yellow.
Solution
Orchids like semi-shade. Apart from full-sun care in early spring and winter, at other times place the plant in a well-ventilated spot and avoid direct sunlight.
4. Improper watering causes orchid leaves to turn yellow
Cause of yellow leaves
Orchids like a moist growing environment and have relatively high requirements for air humidity. When watering is insufficient and the root system is damaged, or when the air is too dry, orchid leaves will turn yellow. Conversely, if watered too much, water accumulates in the pot and drainage is poor, which will cause the orchid roots to lack oxygen and rot, leading to yellow leaves and even death.
Solution
Watering requires skill. Water according to the dryness of the potting soil, watering appropriately and at the right time. Avoid the potting soil being too dry or too wet. Pay attention to the air humidity of the orchid's growing environment. If the air is too dry, spray water frequently to maintain humidity.
Grasp the key points of orchid growing and accomplish the above 4 points, and you can completely grow orchids well with ease, no longer afraid of orchid leaves turning yellow. Fellow orchid growers, have you learned how to plant and grow orchids? If you also like growing orchids, you are welcome to follow and share, and your comments and likes are also expected. Thank you!