Reasons and Solutions for Yellowing Leaves on Snapdragon
Snapdragon (Antirrhinum majus) is an ornamental plant with very high ornamental value, and it is distributed throughout various regions of our country. Snapdragon is now mainly grown as a potted plant and is welcomed by many people. However, when many people grow snapdragons, many problems often arise, and yellowing leaves are one of them. So what causes snapdragon leaves to turn yellow? And what should be done about it? Below, the editor will give everyone a brief introduction. Let's take a look together!
1. Water at the Right Time
During its growth process, snapdragon has a fairly large demand for water. It is also very sensitive to changes in moisture, and the soil for growing snapdragon should be kept in a moist environment. If it is a potted seedling, then attention should be paid to maintaining sufficient watering. If there is too little water, then snapdragon leaves will very easily show yellowing due to dehydration. If yellowing occurs because of too little water, then attention should be paid to watering in time. Avoid the soil being too dry, but the soil must not become waterlogged either, to prevent root damage, otherwise it can also easily cause leaf yellowing.
2. Temperature Adjustment
Snapdragon relatively prefers to grow in a cool environment and has a certain degree of cold tolerance; on the contrary, its ability to tolerate high temperatures is relatively poor. If it grows in a high-temperature environment, then it is very unfavorable for its growth. If the temperature exceeds 15°C, then the growth rate of snapdragon will noticeably decline, thus causing yellowing leaves. Therefore, when growing snapdragon, we should pay attention to creating a cool environment for it and do a good job of shading. In the later stage of its growth, its growing temperature should be kept at around 10°C; only this is most favorable for the growth of snapdragon.
3. Fertilize Reasonably
Snapdragon is a crop that contains rhizobia. Because of the presence of rhizobia, it also has a certain nitrogen-fixing effect. Therefore, when growing snapdragon, we generally do not need to apply nitrogen fertilizer, and if too much nitrogen fertilizer is applied, then it may also cause excessive heat due to too much nitrogen fertilizer, thereby burning the roots and causing leaf yellowing. So when fertilizing, we should pay attention to controlling the application of nitrogen fertilizer, applying less or not applying it. When fertilizing, the main focus should be on phosphorus and potassium fertilizers to ensure the robust growth of snapdragon.
4. Environmental Control
The environment is also very important for the growth of snapdragon. When growing snapdragon, we should pay attention not to easily change the growing environment of snapdragon. Because snapdragon needs a process of adaptation to a new environment. If the growing environment is suddenly changed, then snapdragon will show various problems because it cannot adapt in time, and yellow leaves are one of them. Therefore, when changing the growing environment, first keep the new environment similar to the old environment, and then change it slowly, so that it has a process of adaptation.
The above is a brief introduction to what to do when snapdragon leaves turn yellow. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!