What if the leaves of Cymbidium turn yellow?
Gentleman orchid sword leaves are vigorous, bright green and beautiful flowers, but the leaves often turn yellow due to improper management, affecting the ornamental effect. The causes and control methods of leaf yellow of Cymbidium are briefly described as follows:
The reason for the yellowing of Cymbidium leaves 1: lack of water
Do not water for a long time or only half a section of water at a time, so that the basin soil is too dry or form a "waist cut off water", the bottom of the two to three layers of old leaves will be yellow tip, seriously, the whole leaf will turn yellow and fall off.
Prevention and treatment: the basin soil should not be too full, leaving a depth of 1 cm to 2 cm for watering. Adhere to the principle of "no water, no water, no water". It is a taboo to water flowers every time you "pour water full". Water in time, and if there is no one at home for a long time, put the potted flowers in a wet place or trust others to take care of them.
The reason for the yellowing of Cymbidium leaves 2: too much water
The flowerpot has poor water permeability and forms stagnant water, which shows that the tip tender leaves turn yellow and develop from top to bottom. If long-term stagnant water causes root rot, all the old leaves at the bottom turn yellow and fall off.
Prevention and control methods: water control, stop fertilizer to the normal condition, the basin soil is loosened with high strength. If the situation is serious, the pot soil should be changed, and the rotten roots should be removed and hung for three to five days to be replanted.
The reason for the yellowing of Cymbidium leaves 3: excessive fertility
Cause root burning or water reflux in the plant, and most of the leaves are yellow tip from bottom to top.
Prevention and control measures: stop fertilizing and appropriately increase the amount of water. Under the premise of not damaging the root system, the upper part of the basin soil was removed and replaced with sandy loam with low fertility.
The reason for the yellowing of the leaves of Cymbidium 4: low fertility
If the lack of nitrogen fertilizer, the new leaves are thin yellow-white, the growth is weak; if lack of iron, the top of the leaf turns yellow first.
Prevention and control measures: gradually apply some liquid fertilizer containing nitrogen and iron. Change the basin and replace the loose sandy loam with strong fertility.
The reason for the yellowing of Cymbidium leaves 5: sunburn
Summer sunlight for a long time, the temperature is too high, will make the leaves become red and yellow.
Prevention and treatment: cover the sun properly and move the flowerpot to half-cloudy and half-sunny place.
The reason for the yellowing of Cymbidium leaves 2: frost injury
Freezing injury may occur in the environment of less than 5 ℃, causing the leaves to turn yellow.
Prevention and treatment: put the flowerpot in the environment of more than 8 ℃.
What is the reason why the leaves of Cymbidium are yellow? What if the leaves of Cymbidium turn yellow?
Cymbidium is a perennial herb of the genus Amaryllidaceae, which is a semi-negative plant, which likes to cool and avoid high temperature. The suitable temperature for growth is 15-25 ℃, and it stops growing when it is lower than 5 ℃. It has high ornamental value. However, the orchid will also encounter trouble in the process of growth, what should be done if the leaves turn yellow, and what is the reason?
Editor recommends: what are the plants that absorb formaldehyde? What is the best radiation protection plant golden cactus, how to raise the golden tiger cactus?
What is the reason why the leaves of Cymbidium turn yellow? What if the leaves of Cymbidium turn yellow?
Click on the picture to learn more about it.
- Prev
What are the morbid symptoms of lack of nutrients in orchids?
Magnolia is a precious indoor ornamental flower. The cultivation of Cymbidium is easy, but if it is not managed properly, it will lead to flowers and even poor plant growth. Therefore, rational fertilization is one of the important conditions for the cultivation of Cymbidium. According to observation and research, when Magnolia is deficient in nutrients, it has the following performance: when nitrogen is deficient.
- Next
How to deal with the rotten root of the gentleman orchid?
How to deal with the rotten roots of Cymbidium, Cymbidium is a succulent root plant, if the environmental conditions are poor or improper maintenance, often cause root rot. In general, the seedlings often rot below the base of the leaves, and the adult plants rot below the middle of the roots. There are many reasons for the rotten roots of Cymbidium, the main reasons are: improper fertilization of ①.
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi