It is a normal case for the hibiscus to have yellow leaves. If you see the leaves of this plant turn yellow, there is actually nothing to worry about as the plant has the ability to correct itself. However, it is not always the case and you sometimes have to prune the whole plant if the situation turns bad.
There are a few methods to try to fix the yellow leaves issue. One of them has something to do with vinegar. If you want to try giving the hibiscus vinegar, the recipe includes a cup of vinegar and a gallon of clean water. After getting these ingredients, please mix these two well. After mixing, the next thing that should be done is to pour it into the soil near the roots. Some people think pouring it to the leaves or flowers is the best thing to do when in fact it is the wrong way. Please check out the soil pH before and after pouring the vinegar. According to some sources, the soil pH should range from 6 to 7. Before giving hibiscus vinegar, bear in mind that this method is not recommended by all the gardeners.
One of the things that cause the leaves of hibiscus yellow is too much water or lack of water. While it is true that it needs lots of water, especially in summer or when it is windy, it does not mean overwatering is allowed. It should be watered just enough. You should stop giving the plant water when the soil is moist. Once again, the solid has to be moist and not soggy. During dormancy, watering is not needed. Please do not give it too much water and only water it to prevent it from drying out completely. Besides, the poor drainage can also make the leaves yellow. In this case, it is a must to give the best drainage. To make sure that the plant is getting enough water it deserves, you can use your finger to check the soil. Plus, you might also want to self water pots to fix the issues.
Actually, watering is not the only thing that can cause hibiscus yellow leaves. In fact, the leaves of this plant turn yellow as a way of signaling a specific need, meaning there are tons of other factors that can contribute to the case. Some other ones include:
Hibiscus needs extra watering in the summer or when the temperatures become hot. The lack of water will make the plant dry. In the worst cases, it will not survive. As the sign, leaves will turn yellow to fall off.
Not only the hot weather, the cold one is also not good for hibiscus. The leaves of this plant will turn yellow in the cold weather. To make them save, please try your best to keep the plant away from places with excessive wind. During winter, do not forget to keep the plant indoors.
Light is one of the aspects that cause the hibiscus leaves to turn yellow. Both too much sunlight and lack of sunlight can yellow the leaves. When the plant gets too much sunlight, it will not only get yellow leaves but also get the white spots. If you see this kind of thing, it means your plant is burning. If you are facing this and have no idea what to do, you are recommended to eliminate the leaves that are damaged and then relocate the plant.
As stated before, the lack of sunlight is also not good for the hibiscus. The leaves of this plant will turn yellow and then will start to drop as they make up for the lack of the light. To handle this kind of case, you can move it to a place with more sunlight.
In addition to the indicator of the lack of sunlight or too much sunlight, the leaves of hibiscus can turn yellow when the plant is about to go dormant. In this case, you are recommended to just let the plant die down by giving it less water.
When the hibiscus plant has passed the dormancy phase, it is time for you to bring it inside and put it in a cool and dark place for a few months before pruning it and putting it near the window when there is a sun. When you see the plant is about to grow, feed it with fertilizer so that it can grow well. When the spring comes, remember to put it back outside, the original place. Just like humans, hibiscus can also get stressed. The disease can be indicated by yellow leaves. You can also tell your plant is stressed when it is no longer growing or when it looks wilted after moving it. It is actually such a normal thing to happen knowing moving to a different place needs some time to adjust.
- Nutrient deficiency
The leaves of hibiscus will turn partially yellow if the plant is suffering from a nutrient deficiency. The leaves will not fall and will stand still. In order to fix the issue, you can just add the fertilizer. Another thing that you can do is to change the soil.
Aside from yellowing, the leaves of hibiscus may also suffer from mottling with markings on the underside. This issue might occur due to the attack of pests. The most common pests that usually attack this plant are spiders and mites. The plant will be stressed and then lose all of its foliage if you do nothing to fix the issue. If you see these pests on the hibiscus leaves, do not wait and just spray the plant with soapy water. Not only the soapy water, an appropriate form of pesticide is also effective to get rid of these harmful creatures. When applying these chemical materials, keep in mind to not to spray the liquid too much as it may lead to yellowing.