Why Are Water Lily Leaves Turning Yellow? Causes Explained
The water lily is a perennial aquatic herbaceous plant and is widely distributed in our country. The ornamental value of the water lily is very high, and the roots of the water lily can also absorb toxic substances such as lead and mercury in the water, so its purifying ability is also very strong. However, when we plant water lilies, we will find that the leaves of the water lily turn yellow, which affects the ornamental appeal of the water lily. So why do water lily leaves turn yellow? Let's take a look below!
1. Unsuitable temperature
The water lily has certain requirements for temperature during its growth process, and the suitable growth temperature for the water lily is around 25 degrees. The temperature must not be too high or too low. If the temperature is too low, then the water lily will gradually enter a dormant period and stop growing. If the temperature exceeds 40 degrees, then the water lily will show yellowing leaves. Therefore, we should pay attention to controlling the growth temperature of the water lily well, and pay attention to keeping it warm in winter. In a high-temperature environment in summer, it is necessary to do a good job of shading and cooling, and appropriately spraying water around the water lily plant can achieve the cooling requirement.
2. Light reasons
Light is very important for the growth of the water lily. Although the water lily likes to grow in an environment with sufficient sunlight, if it is exposed to strong light in summer, then the leaves will be scorched, and the leaf edges will also show yellowing and scorching. And if the water lily grows in a lightless environment for a long time, then it cannot carry out photosynthesis, and yellowing will also occur. Therefore, when we plant water lilies, we should also pay attention to controlling the light well. While satisfying the water lily's light needs, we should also pay attention not to let the water lily be exposed to direct strong light. Only in this way can the water lily's branches and leaves be dense and green.
3. Improper watering
The water lily has a relatively large demand for water during growth. During the water lily's growth period, if there is long-term lack of water or the water quality is too poor, then these are the main reasons causing the water lily's leaves to turn yellow. Therefore, we should pay attention to controlling the watering method well. For example, during its growth period, water about once every two days. When the temperature drops in autumn and winter, water about once every 5 days, and keeping the soil slightly moist is enough. If it is planted in a flowerpot, then the soil should be changed promptly once a year to ensure water quality, and water with serious pollution must not be used.
4. Improper fertilizing
The water lily also still needs certain nutrients during its growth period, so we should also pay attention to appropriate topdressing. If the amount of fertilizer applied is too little for a long time, then the water lily will show yellowing leaves due to insufficient nutrients. So we should pay attention to doing a good job of fertilizing. For example, during the water lily's growth period, apply a thin liquid fertilizer about once every two weeks. And in autumn and winter, apply a phosphorus-potassium fertilizer about once a month. It should be noted that no matter what kind of fertilizer it is, the amount should be controlled well to avoid excessive fertilizing causing fertilizer damage.
The above is a brief introduction to why water lily leaves turn yellow. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!