What is going on when the leaves of the gardenia turn yellow?
Do you know these? Let's understand the reasons why the leaves of gardenias turn yellow and the effects of excessive watering on gardenias.
Three reasons you must know about yellow leaves of gardenias, treating the symptoms is the best solution.
Many people like to grow gardenias, but it is easy for the leaves to turn yellow and fall off when they are kept at home. What causes this? How should it be prevented and treated?
Actually, the first reason for the yellowing leaves of gardenias is due to the alkalinity of the potting soil. Since gardenias are flowers from the south, they prefer acidic soil. When growing them at home, it's best to keep the soil acidic. We can add some well-fermented pine needles to the soil, which will not cause problems. We can also regularly water with ferrous sulfate, once a month or every two months, which can prevent the new leaves from turning yellow except for the green veins, which is the best solution.
The second situation is the large-scale yellowing and falling off of the lower leaves, which is mainly caused by a lack of fertilizer. Especially when gardenias are flowering, many gardening enthusiasts will stop fertilizing them, or they barely supplement any fertilizer during the maintenance process. Even when using garden soil for cultivation, the lack of nutrients can cause the lower leaves to turn yellow and fall off, which is quite normal. Whether it's the growing season or the flowering season, fertilizer is essential. Generally, a balanced multi-element fertilizer such as a multi-element nutrient solution or compound fertilizer should be used during the growing season, with a low concentration, about 2-3 times a month. As the flowering season approaches, that is, after entering spring, start using phosphorus and potassium fertilizers, ensuring an adequate supply of monopotassium phosphate to prevent yellowing leaves.
The third situation is due to improper watering. Gardenias like water, and many enthusiasts will water them extensively. If the soil is not dry before watering, it can cause poor indoor ventilation and soil accumulation, leading to the rotting of some roots. The rotting of some roots, along with the large-scale yellowing of the lower leaves, can even cause the new leaves at the top to turn black and dry. This is a situation where excessive watering leads to root rot. If you lack water for a long time and the leaves wilt, they can recover after watering, but the lower leaves will also turn yellow and fall off. If this happens repeatedly, the whole plant will dry up and die. Therefore, when growing gardenias, it is important to control the watering properly. Generally, the soil should be well ventilated, and the pot should not be too large. The principle of watering is to water thoroughly when the soil surface is dry, which will not cause any problems.
When growing gardenias at home, the leaves turning yellow, drying, and falling off are the most common reasons. Analyzing your situation accordingly will not cause any problems. When growing gardenias, it is important to choose a pot of the appropriate size and not too deep. Water the plant when the soil surface is dry and make sure it is placed in a well-ventilated area with plenty of sunlight. Do not let the fertilizer be deficient. In this way, the gardenias we grow can grow and bloom normally without any problems.
The above is [] all about why the leaves of gardenias turn yellow and the effects of excessive watering on gardenias. Have green plant enthusiasts understood?