What causes yellowing leaves on lily plants, and how should it be dealt with?

Water-yellow

This is yellowing caused by watering too frequently, mainly shown by yellowing of young leaves while old leaves show no obvious change; at this point you just need to control the moisture in time.

Drought-yellow

Exactly the opposite of water-yellow, this is caused by too little watering and insufficient moisture; in this case the old leaves turn yellow from the bottom upward, and in severe cases the whole plant will develop yellow leaves and even die, so an appropriate amount of water must be given immediately.

Fertilizer-yellow

Similar in principle to water-yellow, this is yellowing of the leaves triggered by an excess of fertilizer; it mainly shows as abnormal thickness and glossiness of the young leaves, with a bumpy surface as well; at this point you should reduce fertilizing or water to dilute the fertilizer concentration.

Starving-yellow

Opposite to fertilizer-yellow, this is caused by too little fertilizer or too infrequent fertilizing, and shows as yellowing of the young leaves and tender stems; if measures are not taken in time, it can eventually cause the whole plant to develop yellow leaves and even die; but when dealing with it you must not use an excessive amount of strong fertilizer all at once, as this will not only fail to solve the problem but may also burn the roots, so you need to go slowly, increasing the amount of fertilizer little by little until it recovers.

Iron deficiency

Among the manifestations of "nutrient-deficiency" leaf yellowing, there is another special case, which is insufficient iron content, a cause of yellow leaves that deserves greater attention. It mainly shows on the young leaves, with little effect on the old leaves; the mesophyll of the diseased leaves is yellow and the veins form a net-like pattern; the way to solve this phenomenon is to mix cake fertilizer, ferrous sulfate and water in a ratio of 7:5:200 and spray it on.

Other

Besides the above causes, disease or pests can both lead to yellowing of this plant's leaves. If disease appears, we can promptly spray the corresponding antibiotic. If pests appear, we must promptly spray the corresponding pesticide.

In addition, if the soil becomes compacted and too hard, the plant's roots cannot absorb nutrients from the soil well, and root respiration is hindered, which can also cause the leaves to turn yellow; at this time we must promptly loosen the soil or simply replace the potting soil.

So, after reading about the causes of yellowing lily leaves and the countermeasures introduced by the editor, will you no longer feel panicked and dizzy when facing this kind of situation? Was it very helpful to you?

What to do when lily leaves turn yellow: causes of yellowing lily leaves

The lily is a perennial herbaceous bulbous plant of the genus Lilium in the family Liliaceae. What should we do when we encounter yellowing lily leaves during cultivation? Below we will explain the causes of yellowing lily leaves.

1. Water-yellow. Too much watering easily causes the potting soil to stay wet for a long time, suffocating and rotting the root system, which leads to yellow leaves and even leaf drop; its characteristic is that the old leaves show no obvious change while the young leaves turn yellow. When yellow leaves are caused by overly wet soil, you should stop watering, loosen the soil, and let it ventilate and dry out.

2. Drought-yellow. Caused by lack of water and drought, its characteristic is that the old leaves turn yellow first from the bottom upward; if the water shortage lasts a little longer, the whole plant's leaves will turn yellow and it may even die. You should water in good time, adhering to the principle of "water when dry, and when you water, water thoroughly."

3. Fertilizer-yellow. Caused by fertilizing too often or at too high a concentration; its characteristic is that the young leaves are thick, glossy, and uneven. You should reduce fertilizer, carry out intertillage, and water; in summer apply a thin fertilizer once a week. If too much fertilizer has already been applied, you can water more to dilute it and flush the fertilizer out of the soil.

4. Starving-yellow. During the growing period of potted lilies, not fertilizing for a long time or insufficient fertilizing will cause leaf yellowing. Its characteristic is that the young leaves and tender stems turn yellow first. Lack of fertilizer also causes the potting soil to become compacted, and the branches to become thin, long, yellow and tender. You should fertilize immediately, and results will be seen within a week.

5. Nutrient-imbalance yellow leaves: lilies have a relatively large need for nitrogen and potassium fertilizers, and during the growing period these should be applied once every 10-15 days, while phosphorus fertilizer should be limited, because too much phosphorus fertilizer will cause the leaves to wither and turn yellow.

6. Iron-deficiency yellow leaves. Lilies are sensitive to the salt content of the soil; the soil pH should be 5.5-6.5. High alkalinity will bring about the physiological disease of iron-deficiency chlorosis. To monitor the pH of fertilizer and water you can use universal pH test paper, sold at Western pharmacies and medical equipment stores (2 yuan a booklet, usable for a very long time).

7. Yellow leaves during the acclimatization period: with newly potted plants or repotting, because the roots are injured and the plant has not adapted to the new environment (potting soil, water quality, environmental humidity and temperature), leaf yellowing is most likely to occur; at this time you should keep it in the shade, withhold fertilizer, water only when the soil has dried out and then water thoroughly, and spray the leaves with water; wait until new leaves grow before returning to normal care.

8. Pests and diseases: damage from pests and diseases can also cause the leaves to turn yellow. Remove pests and diseases promptly.

What to do when lily leaves turn yellow

 The lily is a perennial herbaceous bulbous plant; its flower shape is beautiful and elegant, and its flower colors are alluring. People usually like to grow it as a potted plant at home, but during cultivation, yellowing of lily leaves often occurs. What should be done then? There are many causes of yellowing lily leaves, and everyone should deal with them according to the specific situation. Below, the editor will explain in detail what to do when lily leaves turn yellow.

1. Overwatering makes the leaves turn yellow

During cultivation, lilies must not be overwatered, otherwise water will accumulate in the pot, causing its root system to rot and the leaves to turn yellow; at this time you should promptly loosen the potting soil, increase its permeability, and let it dry out a bit quickly, which will stop the leaves from continuing to turn yellow.

2. Improper fertilizing makes the leaves turn yellow

Yellowing of lily leaves is also closely related to fertilizing. If the fertilizer concentration is too high, it will make the leaf surface turn yellow; at this time you should promptly reduce fertilizing, and carry out intertillage and watering. In addition, lilies cannot be given fertilizer of too high a concentration directly; normally you should mainly apply thin fertilizer solution.

3. Lack of a certain nutrient makes the leaves turn yellow

Yellowing of lily leaves may also be caused by a lack of a certain nutrient. During normal growth, lilies have a relatively large demand for the trace element iron; when this nutrient is in short supply, it will make the lily leaves turn yellow, and at this time you only need to supplement the trace element iron in time. In addition, when lilies lack phosphorus, the leaves will also turn yellow, so when fertilizing normally you should apply more phosphorus fertilizer and less nitrogen fertilizer.