What to do if camellia leaves turn yellow

Normal yellowing

Although camellia is an evergreen plant, when it is cultivated, the leaves generally will not fall off for 2-3 years, but the leaves will still be replaced. During April and May, some of the old leaves of the camellia will turn yellow and then fall off. This is a normal metabolic phenomenon.

Lack of growth elements

When growing camellia, if there is a lack of nitrogen, the leaves will turn yellow. At this time, fertilizer should be added in time. Generally, you can apply decomposed bean cake water once a month, or add 1% ferrous sulfate solution to supplement the growth elements that camellia lacks.

Soil issues

The yellowing of camellia leaves may be caused by the soil, including the pH value and nutrients of the soil. Camellia is a plant that likes acidic soil, but in northern regions the soil solution becomes alkaline, which will cause its leaves to turn yellow. Another reason is that the nutrients in the soil are gradually lost, causing it to be nutrient deficient and the leaves to lose their green color. It is best to change the potting soil for camellia regularly, and the soil should be mountain mud rich in humus. You can spray camellia with foliar fertilizer to slow down the symptoms of yellowing leaves.

Watering Problems

The main problem with watering is that the plants are too dry or too wet for a long time, which will lead to yellowing due to waterlogging or drought. If you water too much, the soil in the pot will be too moist and water will accumulate, which can easily lead to root rot of the camellia and cause the leaves to turn yellow and fall off.

If you water it less, expose it to long periods of drought or dry air, it will lack water and its leaves will turn yellow.

Therefore, when growing camellia, you should pay attention to watering it properly and keep the soil moist but not waterlogged.

Pests and diseases

When growing camellia, if you encounter pests and diseases such as red spider mites and scale insects, they will harm the plants, causing the leaves to turn yellow and severely fall off, and the entire plant will be affected.

When red spider mites occur, you can use 50% trisulfide solution to spray and kill them. Scale insects can also be sprayed with special agents. It is best to maintain them reasonably and take precautions in advance.