What to do if hibiscus leaves turn yellow

Pay attention to watering when planting hibiscus

Hibiscus does not have very high requirements for water. During the growing period, just keep the soil and water in the yard moist but not dry. If you water too little or do not pay attention to the accumulation of water in the yard during the rainy season, the leaves of the hibiscus will turn yellow and fall off. Even though hibiscus does not have strict requirements for watering, we should always be vigilant about the growth of hibiscus. The principle of watering hibiscus is to water less and not accumulate.

Hibiscus should be properly fertilized

Every hibiscus planter hopes for vigorous growth and beautiful flowers. Therefore, many people fertilize hibiscus with large amounts of fertilizer, which causes the leaves to turn yellow and the plant to grow poorly. Phosphorus and potassium fertilizers are the main fertilizers for hibiscus.

Use nitrogen fertilizer for reasonable topdressing. If too much fertilizer is applied, it will become dense, burn the root system, and cause the leaves to turn yellow and fall off. If you find that the hibiscus leaves turn yellow and fall off after daily fertilization, you should pay attention to whether the problem is caused by excessive fertilization.

Pest and disease control of hibiscus

Aphids are one of the more common pests of hibiscus, causing extremely serious harm to the growth of hibiscus. Aphids suck the sap from leaves. Excessive sap can cause the leaves to turn yellow and wither. Therefore, aphids are also an important reason for the yellowing of leaves. If so, it is necessary to spray pesticides in time for treatment;

Similarly, disease is also an important factor that causes hibiscus leaves to turn yellow and wither, especially leaf blight. The characteristic of leaf blight is that many small black spots appear on the back of the leaves. Using sprays such as mancozeb can restore the leaves to normal.

It is forbidden to change the pot during the flowering period of hibiscus

The healthy growth of hibiscus is inseparable from repotting, but the timing of repotting needs to be good. Repotting is prohibited during the flowering period of hibiscus. The most likely result of repotting is certain damage to the root system of hibiscus. Once the root system is damaged, the flowers and leaves of hibiscus will be damaged to a certain extent, causing the leaves to turn yellow and fall off.