What Causes House Plant Leaves Turning White?

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If you’re a plant lover, you may have noticed that sometimes your house plants don’t look as healthy as you’d like them to. One common issue is when the leaves start turning white. This can be concerning, as it may signal an underlying problem that needs to be addressed. In this article, we’ll explore the possible causes of house plant leaves turning white and what you can do about it.

Possible Causes

There are several reasons why your house plant leaves may be turning white. Here are some of the most common causes:

1. Powdery Mildew

Powdery mildew is a fungal disease that can affect a wide variety of plants, including house plants. It appears as a white or gray powder on the leaves, stems, and flowers of the plant. If left untreated, powdery mildew can weaken the plant and cause it to die.

2. Mealybugs

Mealybugs are small, white insects that feed on the sap of plants. They can be found on the leaves, stems, and flowers of the plant. Mealybugs can cause yellowing and curling of the leaves, as well as a white, cottony substance on the plant.

3. Spider Mites

Spider mites are tiny insects that feed on the leaves of plants. They can cause yellowing, curling, and a white, web-like substance on the leaves. Spider mites can quickly spread from plant to plant and can be difficult to get rid of.

4. Overwatering

Overwatering can cause the roots of the plant to rot, which can lead to white or yellow leaves. If you notice that the soil is constantly moist or that there is standing water in the bottom of the pot, you may be overwatering your plant.

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What Can You Do?

Now that you know some of the possible causes of house plant leaves turning white, you may be wondering what you can do to fix the problem. Here are some steps you can take:

1. Identify the Problem

The first step in treating your plant is to identify the problem. Look for any signs of fungal growth, insects, or overwatering. Once you know what’s causing the problem, you can take steps to address it.

2. Remove Affected Leaves

If the leaves are severely damaged, it may be best to remove them. This can help prevent the problem from spreading to other parts of the plant.

3. Treat the Plant

Depending on the problem, you may need to treat your plant with a fungicide or insecticide. Be sure to follow the instructions carefully and avoid using too much of the product.

4. Adjust Watering Habits

If you’re overwatering your plant, adjust your watering habits. Allow the soil to dry out between waterings and make sure the pot has good drainage.


House plant leaves turning white can be a sign of an underlying problem, but with a little knowledge and care, you can get your plant back to its healthy state. By identifying the problem, removing affected leaves, treating the plant, and adjusting your watering habits, you can help your plant thrive. Remember to always follow the instructions on any products you use and don’t be afraid to ask for help from a professional if needed.

Read Also: 3 Plants To Clean Air

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