What to Do When the Leaves of a Peace Lily Turn Yellow? Causes and Solutions

The peace lily symbolizes the owner's smooth sailing and everything going their way, so quite a few people grow peace lilies. But during the growing process, improper methods may lead to the phenomenon of peace lily leaves turning yellow. Below, let's take a look at the causes and solutions for peace lily leaves turning yellow!

Dry air causes leaves to turn yellow

[Cause of yellowing] The peace lily needs relatively high growing humidity. If the air is too dry, the leaves will wilt.

[Solution] This can be solved by increasing misting or sprinkling water on the ground in the environment. Covering it with a transparent plastic bag also works, but when the light is good, it should be ventilated slightly or a small opening should be made at the top of the plastic bag for ventilation, otherwise the temperature inside the bag will rise sharply.

Overwatering causes leaves to turn yellow

[Cause of yellowing] Too much water will affect the plant's root system in carrying out respiration. The peace lily's roots cannot breathe smoothly, leading to root rot, and the leaves turn yellow and black.

[Solution] Indoors at just over 20°C, it is suitable to water thoroughly once every three to five days.

Nutrient deficiency causes leaves to turn yellow

[Cause of yellowing] As we all know, in the early stages of plant growth, nutrients are absorbed from the soil. Over time, the nutrients in the soil will decrease, causing nutritional deficiency. Excessive fertilizer and cold damage also easily cause yellow leaf tips.

[Solution] At this point, the soil should be changed immediately. It is recommended to buy leaf mold, peat soil and multi-element soil to repot your peace lily.

Improper lighting causes leaves to turn yellow

[Cause of yellowing] The peace lily needs relatively good light in winter and early spring and should not be shaded. When the light gradually becomes stronger, it should be gradually shaded. If it is enjoyed in a shaded place, it must not be placed directly in the sun for exposure, otherwise it will become uncomfortable due to the drastic change in environment, showing wilting, yellow leaves, and even death.

[Solution] Keep the peace lily indoors in a place with bright, scattered light all year round.

Unsuitable temperature causes leaves to turn yellow

[Cause of yellowing] This generally does not happen easily. Peace lily leaves are prone to turning yellow mostly when the temperature is below 5°C or above 35°C.

[Solution] Provide sufficient light conditions. This not only helps the leaves become dark green, but also helps it overwinter.

Improper fertilizing causes leaves to turn yellow

[Cause of yellowing] Improper fertilizing can also cause peace lily leaves to turn yellow.

[Solution] Fertilize with thin fertilizer. Do not apply concentrated fertilizer or raw fertilizer, and after applying solid fertilizer, water once with clear water. It is best to use dilute fertilizer water instead of clear water for watering. In this way, fertilizer damage generally will not occur, and the plant will grow vigorously.

Pest infestation causes leaves to turn yellow

[Cause of yellowing] If there is damage from mite pests, the leaves of the peace lily will show adverse symptoms such as wilting, faded luster, and yellowing and withering.

[Solution] Spray with special miticides for control, such as dicofol, hexythiazox, and pyridaben.