What is going on when the leaves of gardenia turn yellow?
This article provides a core guide to the topic of why the leaves of gardenias turn yellow, including the reasons for yellowing leaves and the methods for dealing with them in the field of green plants and flowers. Next, the editor of this site will introduce the topic to everyone.
The flowers of gardenias have a very strong fragrance and are very large, making them a favorite of many people. However, those who grow gardenias know that they are prone to yellowing leaves. So, what are the different situations that cause yellowing leaves? What are the reasons? How should we solve this problem?
The first situation is when the veins of the leaves are green, and the rest of the leaf turns yellow. This starts from the new leaves and eventually spreads to all the leaves of the plant. The main reason for this is the alkalinity of the potting soil, especially in northern areas where both the soil and water are alkaline, making this situation very common. The plant lacks iron elements. During maintenance, we must supplement sulfuric iron in a timely manner. Sulfuric iron can adjust the soil to be acidic and supplement iron, preventing the yellowing of leaves in gardenias. If detected early,浇灌ing sulfuric iron once can solve the problem. If the entire plant shows this situation, then changing the pot and soil is the best solution.
The second situation is when the veins of the leaves 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: the first is the normal aging of old leaves, which is not a problem as long as it's not too many leaves dropping per month. The second reason is due to a lack of fertilizer. Gardenias require a lot of fertilizer for growth and flowering. Generally, supplementing with multi-element fertilizers during the growing season and phosphorus-rich fertilizers before flowering can help them bloom. Therefore, regularly supplementing fertilizers in the right amount is essential. If you do not fertilize your gardenias for a long time, it's easy to encounter this type of yellowing leaves.
The third situation is yellowing of the veins caused by improper watering. Gardenias like water but cannot be overwatered, as excessive watering can damage the roots, leading to root rot and resulting in yellowing leaves. This happens because the rotted roots cannot supply nutrients in time. Another reason is prolonged drought, which causes the leaves to wilt. Although they can recover after watering, the lower leaves will show yellowing.
These are the main three reasons for the gradual yellowing of the veins. Addressing these issues appropriately can solve the problem. In fact, it is not difficult to grow gardenias at home. We should not use too large pots and ensure the soil is breathable. It's best to mix half of the soil with pine needle soil and place the plant in the most sunlit area to ensure good ventilation. Generally, when watering, make sure the soil surface is dry before thoroughly watering. Use multi-element fertilizers during the growing season and phosphorus-potassium rich fertilizers during flowering. This way, there will be no problems, and the plant will grow and bloom normally. It is very simple to take care of them well.
The content introduced above about why the leaves of gardenias turn yellow and the reasons and methods for dealing with yellowing leaves is hoped to be helpful to green plant enthusiasts!