Why does the gardenia turn yellow?
The editor will explain the reasons why the gardenia turns yellow and the contents of green plant flower planting for the yellowing leaves of potted gardenias. The following is an introduction for you.
The gardenia has a very strong fragrance when it blooms, and the flowers are very large. Many people like to grow it. However, those who grow gardenias know that it is prone to yellowing leaves. So, what are the situations for its yellowing leaves? What are the causes? How should we solve it?
The first situation is that the leaf veins are green, and the rest of the area turns yellow. It starts from the new leaves and eventually spreads to all the leaves of the entire plant. The main reason for this situation is caused by the alkalinity of the potting soil, especially in the northern region where the potting soil and water are alkaline, which easily leads to this condition. It lacks iron elements. We must supplement iron sulfate in time during maintenance. Iron sulfate can adjust the soil to be acidic and supplement iron. In this way, the gardenia will not have yellow leaves in this situation. If it is detected in the early stage,浇灌ing iron sulfate once can solve the problem. If the entire plant has this condition, then changing the potting soil is the best solution.
The second situation is that the leaf veins start to turn yellow and gradually spread to the entire leaf, from the bottom up, eventually leading to leaf drop. There are two reasons for this situation. The first reason is due to the normal degeneration of old leaves. If it's not too many, and only a few leaves drop within a month, it's fine. The second situation is caused by a lack of fertilizer because gardenias require a lot of fertilizer for growth and blooming. Generally, it is supplemented with multi-element fertilizers during the growing season and fertilizers high in phosphorus before flowering to make it bloom. Therefore, it is essential for us to supplement fertilizers regularly and in the right amount. If you grow gardenias without fertilizing for a long time, it is easy to have yellow leaves in this situation.
The third situation is caused by improper watering, leading to yellowing of the leaf veins. Gardenias like water but cannot be overwatered. Excessive watering can damage the roots, causing root rot and resulting in yellow leaves in this situation because the nutrients are not replenished in time when the roots rot. Also, prolonged drought and frequent wilting of the leaves can cause yellowing of the lower leaves even though they can recover after watering.
These are the three main reasons for the gradual yellowing of the leaf veins. You can solve them appropriately according to the situation. In fact, it is not difficult to grow gardenias at home. We should not use too large pots and ensure the soil's breathability. It's best to add half of the pine needle soil to the soil and place it in the sunniest area to ensure ventilation. Generally, when watering, water thoroughly when the soil surface is dry. Use multi-element fertilizers during the growing season and fertilizers high in phosphorus and potassium for blooming. This way, there won't be any problems, and it will grow and bloom normally. It's very simple to take good care of it.
The above information about why gardenias turn yellow and the causes of yellowing leaves in potted gardenias is for your reference, green plant enthusiasts.