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Reasons for Yellowing Leaves on Cymbidium sinense and How to Fix Them

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There are five reasons. First, the light is too strong; move it to a cool, ventilated spot first. Second, overwatering, or a large amount of water remaining on the leaves, requires sensible, scientific watering. Third, too much fertilizer; do not fertilize too frequently. Fourth, the temperature is too low; place it in a warm spot. Fifth, disease has occurred; spray with a treatment.

1. Place it in a cool, ventilated position

(1) Specific cause: If the plant stays for a long time in a spot with particularly strong light, especially combined with very high temperatures, the leaves are prone to yellowing after sunburn.

(2) Solution: First keep it in a cool, ventilated spot for a period of time. Once the plant has roughly recovered, it can gradually be exposed to light. It needs diffused light, not too strong.

2. Water sensibly and reasonably

(1) Specific cause: If you water too much and cause root rot, or if a large amount of water remains on the leaves, the leaves very easily turn yellow.

(2) Solution: Do not water too much at one time; once the water has run through, stop. Also, do not splash water onto the leaves, and make sure there is good ventilation to speed up evaporation.

3. Do not fertilize frequently

(1) Specific cause: Too much fertilizer or too high a concentration easily causes fertilizer burn. In addition, uneven fertilizer application, or fertilizer water getting on the leaves, can also make them turn yellow.

(2) Solution: Do not fertilize too frequently. Apply the fertilizer evenly. Do not let fertilizer water get on the leaves either.

4. Place it in a warm spot

(1) Specific cause: In winter, when the temperature is particularly low, cold damage occurs and the leaves may turn yellow.

(2) Solution: In winter, move the plant indoors or to another warm place for care; do not let it go below zero degrees.

5. Spray with a treatment

(1) Specific cause: When the environment is unsuitable, disease easily occurs and the leaves easily turn yellow.

(2) Solution: Remove the leaves infected with disease, then spray with a treatment.

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