What’s wrong with the yellow leaves of hibiscus and how to remedy the situation?

Hibiscus, also known as Chinese hibiscus, is a perennial evergreen shrub of the genus Hibiscus in the Malvaceae family. The plant has a beautiful and elegant shape, large and colorful flowers, and if properly maintained, it can bloom all year round, making it very popular among flower lovers. So what’s the matter with the yellow leaves of hibiscus? How to remedy it? Let’s learn more about it below.

1. Unsuitable soil

Hibiscus grows best in slightly acidic soil. If the soil is severely alkaline, it will grow poorly and the new leaves will naturally turn yellow slowly. If this is the case, find it and water it with ferrous sulfate and water in a ratio of 1:1000. Generally, it takes about two times in half a month to recover.

2. Overwatering

The root system of hibiscus is relatively developed and drought-resistant. If it is watered too much, it will easily become silted. The siltation will inevitably cause some capillary roots to rot, resulting in large areas of yellowing of leaves. Therefore, in order to master the correct watering method, it is generally best to wait until the soil is completely dry before watering. You can look at the leaves. If the leaves are slightly wilted, you can water them. This will reduce water accumulation.

3. Temperature is too low

Hibiscus is afraid of cold and is not cold-resistant. The suitable growth temperature is 15 degrees to 25 degrees. When caring for it in the north, if the temperature is lower than 10 degrees in winter, the leaves will turn yellow. Therefore, when the temperature drops and before the frost falls, the potted hibiscus must be moved back indoors.

4. Improper fertilization

Hibiscus has a very long flowering period. If the temperature remains high, it will keep growing and blooming all year round. The top will keep growing and producing flower buds, so it consumes a lot of nutrients. In order to make it bloom continuously, many flower lovers will choose to use potassium dihydrogen phosphate. However, potassium dihydrogen phosphate does not contain other elements, only phosphorus and potassium. Long-term use will lead to a lack of other elements and yellow leaves. Therefore, choose fertilizer suitable for hibiscus, and be careful not to over-fertilize to avoid root burns.

5. Insufficient light

Hibiscus requires ample sunlight to grow properly and maintain green leaves. If the plant is in a shady environment, the leaves may turn yellow. At this time, the hibiscus should be moved to a place with sufficient light, such as a balcony or next to a window, so that it can resume growth quickly.

In general, hibiscus is actually very easy to maintain. As long as you pay attention to some details such as soil, water, fertilizer, light, temperature, etc., it is basically unlikely that yellow leaves will appear.