What to Do When Peacock Plant Leaves Turn Yellow? Causes and Solutions

Yellowing leaves on potted houseplants is something many plant lovers have encountered, and it seriously affects the plant's ornamental appeal. There are always reasons behind yellowing leaves, and even when it is a natural phenomenon, it is caused by plant metabolism and the replacement of old leaves with new ones. Yet for an evergreen peacock plant (Calathea makoyana) to develop yellow leaves seems somewhat unreasonable.

In fact, yellowing leaves on a peacock plant is not a random occurrence. If we make mistakes in care and management, yellowing leaves will naturally follow. So what exactly is going on? Below, the editor will analyze this further.

1. Lack of light

As everyone knows, the vast majority of plants need photosynthesis to promote growth, and the peacock plant is certainly no exception. If a potted peacock plant is kept in a shaded environment for a long time, its leaves cannot produce chlorophyll through photosynthesis, and over time yellow leaves, or even leaf drop, will occur.

Although the peacock plant does not like to be exposed to harsh sun, appropriate light is essential to meet its own growth needs. So in normal times, simply place it somewhere it can receive indirect light to supplement its lighting.

2. Too much light

In the previous point, the editor said that insufficient or no light can cause leaves to turn yellow. In fact, too much light can likewise cause withered branches and yellow leaves. Especially in the hot summer, when not only the temperature is high but the light is also particularly strong, direct strong light should be kept off the peacock plant.

In this case, if the yellowing leaves are caused by too much light, shade measures should be taken promptly; it is recommended to place it in a semi-shaded spot where it can receive indirect light.

3. Caused by lack of water

Above, the editor explained that improper light can cause yellow leaves on the peacock plant. In addition, insufficient watering is another important cause of yellow leaves. A plant will grow slowly due to long-term water shortage or lack of water supply, and the leaves will also compete with each other for water, so some leaves that lose out in the competition will naturally turn yellow.

When the plant lacks water, we should replenish it promptly. To avoid causing yellow leaves, we should water thoroughly at intervals, giving enough water, but not causing water to accumulate in the pot; keeping the soil moist and providing the plant with enough water is sufficient.

4. Overwatering

The peacock plant can develop yellow leaves from insufficient watering or a long-term lack of water supply, but please do not overlook this problem: when excessive watering causes water to accumulate in the pot, the plant's roots will rot, which in turn also leads to yellow leaves and leaf drop. When you find that your peacock plant has dark yellow, lusterless leaves even on the young leaves, while the old leaves show no obvious change, and the stems and leaves are thin and small with wilted new shoots, this indicates that watering has already been excessive.

In fact, the remedy for overwatering is very simple: just take the plant out of the pot and place it together with the soil in a cool, ventilated place to dry out a little. After the potting soil has dried, put it back into the flowerpot. It is only in future water management that everyone needs to be more careful.