Causes and treatments for yellowing hibiscus leaves

1. Improper watering

1. Reason: Improper watering may cause its leaves to turn yellow. Watering too much or too frequently will cause water accumulation at the roots and reduce the ability to absorb water; watering too little will result in less moisture in the soil. This will cause the roots to absorb less water and the leaves to turn yellow.

2. Treatment method: If you water too much, you should reduce the amount of watering and keep the soil warm and moist. The rotten roots and yellow leaves should be cut off; if you water too little, you should increase the amount and frequency of watering. Water once every 2-3 days during the growing season.

2. Unreasonable choice of time for changing pots

1. Reason: It is particularly important to repot hibiscus flowers regularly, but if the time for repotting is not appropriate, such as repotting during its flowering period or growth period, it is inappropriate. Because the nutrients needed for metabolism are particularly high at this time, repotting may cause the roots to not get enough nutrients as expected, causing the leaves to turn yellow.

2. Solution: Pay attention to the timing of repotting. It should be placed in a warm environment and kept clean until it recovers. Leaves that have turned yellow should be cut off in time.

3. Pest and disease damage

1. Reason: When the leaves are attacked by pests and diseases such as red spider mites, whiteflies, and aphids, the sap in the leaves will be sucked dry, and the nutrients in the leaves will be lost, causing the leaves to wilt, turn yellow, and eventually fall off.

2. Treatment method: When insect pests are found, they should be sprayed with organophosphorus pesticides such as chlorpyrifos for prevention and control as soon as possible. Branches, leaves and even plants that cannot be saved must be abandoned decisively to prevent more diseases and insect pests from occurring.