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What to Do When Osmanthus Leaves Turn Yellow? Causes and Solutions

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When osmanthus leaves turn yellow, you need to take countermeasures according to the cause: if it is caused by unsuitable temperature, give it an appropriate temperature; if it is caused by too much watering, reduce watering and do not water until the soil is dry; if it is caused by too little fertilizer or too much fertilizer, fertilize reasonably; if it is caused by unsuitable soil, change the soil appropriately.

1. Appropriate temperature

15-28°C is the optimal temperature for osmanthus growth. If the summer temperature is too high and you do not cool it down or still leave it exposed to the sun, its leaves will easily turn yellow. If the winter temperature is too low and you do not take appropriate insulation measures, it will also cause its leaves to turn yellow. Therefore, when growing osmanthus, pay attention to cooling it in summer; you can move it to a relatively shady place, and pay attention to keeping it warm in winter; you can move it indoors.

2. Reasonable watering

This flower is not tolerant of waterlogging. Once it is watered too much, it easily causes root rot, and root rot will inevitably lead to yellow leaves. Therefore, when planting this plant, you must choose loose soil with good drainage. In addition, do not water too frequently in daily watering, and do not water too much at one time. Just water after the potting soil is dry.

3. Correct fertilization

If there is too little fertilizer, it will cause this plant's leaves to turn yellow. Therefore, during its growing period, we should apply fertilizer reasonably. Both liquid fertilizer and compound fertilizer are fine, but note that the concentration applied must not be too high. In addition, we should repot and change the soil in time to ensure the potting soil does not become compacted and there are enough nutrients in the soil. It is worth noting that when fertilizing, do not be impatient. Applying too much fertilizer at one time or using too high a concentration is not good for its growth and may even cause root burn and yellow leaves.

4. Changing the soil

Relatively speaking, it prefers slightly acidic soil. If the soil is alkaline or becomes alkalized, the leaves of this plant may turn yellow. To maintain soil acidity, you can mix a little ferrous sulfate or leftover beer into the water when watering. Likewise, note that both the ferrous sulfate solution and the beer must be diluted, and the concentration must not be too high.

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