Reasons for Camellia Leaves Turning Yellow, Withering and Drying Up, and How to Fix Them
There are many reasons for camellia leaves turning yellow, including care and management factors as well as physiological factors.
In summer, yellowing or whitening of the leaves occurs because the soil is lacking phosphorus, iron, sulfur or other nutrient elements; the potting soil can be replaced and the plant grown in mountain soil rich in humus. From April to September, spraying the foliage every 15 days with a ferrous sulfate solution diluted 300 times, or with a trithion solution, can reduce the symptoms. Spraying should be done on cloudy days, or in the early morning or evening on sunny days.
If the nitrogen supply is insufficient, yellowing of the leaves will also occur; apply decomposed soybean cake water once a month, with the fertilizer-to-water ratio at 20%-30%. Adding a 1‰ ferrous sulfate solution to the fertilizer water gives even better results.
Improper watering, whether prolonged drought or excessive moisture, can also cause yellow leaves. If the potting soil is too wet, the plant's root system will turn black and rot, causing the leaves to turn yellow and drop. On hot sunny days, even if the plant is shaded with a screen, potting soil that dries out frequently will also cause the leaves to turn yellow and drop.
Infestation by red spider mites or scale insects will also cause the leaves to wither and turn yellow. Red spider mites can be killed by spraying a solution of 25% dimethoate mixed with water at 1000-1500 times dilution, or 50% trithion mixed with water at 2500-3000 times dilution; scale insects can be killed by spraying a 5% dimethoate aqueous solution.
Camellia is an evergreen tree, and its leaves do not drop for 2-3 years after forming on new shoots, but during the leaf-changing period in April and May, a small number of old leaves will also turn yellow and drop; this is a normal phenomenon.
Why do camellia leaves turn yellow
There are many reasons for camellia leaves turning yellow, including care and management factors as well as physiological factors.
In summer, yellowing or whitening of the leaves occurs because the soil is lacking phosphorus, iron, sulfur or other nutrient elements; the potting soil can be replaced and the plant grown in mountain soil rich in humus. From April to September, spraying the foliage every 15 days with a ferrous sulfate solution diluted 300 times, or with a trithion solution, can reduce the symptoms. Spraying should be done on cloudy days, or in the early morning or evening on sunny days.
If the nitrogen supply is insufficient, yellowing of the leaves will also occur; apply decomposed soybean cake water once a month, with the fertilizer-to-water ratio at 20%-30%. Adding a 1% ferrous sulfate solution to the fertilizer water gives even better results.
Improper watering, whether prolonged drought or excessive moisture, can also cause yellow leaves. If the potting soil is too wet, the plant's root system will turn black and rot, causing the leaves to turn yellow and drop. On hot sunny days, even if the plant is shaded with a screen, potting soil that dries out frequently will also cause the leaves to turn yellow and drop.
Infestation by red spider mites or scale insects will also cause the leaves to wither and turn yellow. Red spider mites can be killed by spraying a solution of 25% dimethoate mixed with water at 1000-1500 times dilution, or 50% trithion mixed with water at 2500-3000 times dilution; scale insects can be killed by spraying a 5% dimethoate aqueous solution.
Camellia is an evergreen tree, and its leaves do not drop for 2-3 years after forming on new shoots, but during the leaf-changing period in April and May, a small number of old leaves will also turn yellow and drop; this is a normal phenomenon.
What to Do When Camellia Leaves Turn Yellow: Causes and Solutions for Yellowing Camellia Leaves
Camellia is one of our favorite flower varieties. What should you do when camellia leaves turn yellow? Below, we will explain the causes of camellia leaves turning yellow and the solutions.
Causes of camellia leaves turning yellow:
1. In summer, yellowing or whitening of the leaves occurs because the soil is lacking phosphorus, iron, sulfur or other nutrient elements. The potting soil can be replaced and the plant grown in mountain soil rich in humus.
2. If the nitrogen supply is insufficient, yellowing of the leaves will also occur.
3. Improper watering, whether prolonged drought or excessive moisture, can also cause yellow leaves.
4. Infestation by red spider mites or scale insects will also cause the leaves to wither and turn yellow.
Solutions for camellia leaves turning yellow:
1. Metabolism
Camellia is an evergreen tree, and its leaves do not drop for 2-3 years after forming on new shoots, but during the leaf-changing period in April and May, a small number of old leaves will also turn yellow and drop; this is a normal phenomenon of the camellia tree's metabolism.
2. Unsuitable soil
In summer, yellowing or whitening of the leaves occurs because the soil is lacking phosphorus, iron, sulfur or other nutrient elements. The potting soil can be replaced and the plant grown in mountain soil rich in humus. From April to September, spraying the foliage every 15 days with a ferrous sulfate solution diluted 300 times, or with a trithion solution, can reduce the symptoms. Spraying should be done on cloudy days, or in the early morning or evening on sunny days.
3. Insufficient elements
During the growth of the camellia, if the nitrogen supply is insufficient, yellowing of the leaves will also occur. Apply decomposed soybean cake water once a month, with the fertilizer-to-water ratio at 20%-30%. Adding a 1% ferrous sulfate solution to the fertilizer water gives even better results.
4. Improper watering
Camellia care requires attention to watering; if watering is improper, whether prolonged drought or excessive moisture, it can also cause yellow leaves. If the potting soil is too wet, the plant's root system will turn black and rot, causing the leaves to turn yellow and drop. On hot sunny days, even if the plant is shaded with a screen, potting soil that dries out frequently will also cause the leaves to turn yellow and drop.
5. Pest damage
Camellias can suffer from various insect pests and diseases. Infestation by red spider mites or scale insects will also cause the leaves to wither and turn yellow. Red spider mites can be killed by spraying a 25% solution mixed with water at 1000-1500 times dilution, or 50% trithion mixed with water at 2500-3000 times dilution; scale insects can be killed by spraying a 5% aqueous solution.