Live to Plant

Why Are My Purple Heart Plant Leaves Turning Yellow?

Updated: July 10, 2023

Introduction

The purple heart plant, also known as Tradescantia pallida or wandering Jew, is a popular houseplant known for its striking purple foliage. However, if you notice that the leaves of your purple heart plant are turning yellow, it can be a cause for concern. Yellowing leaves can indicate a variety of issues, ranging from improper care to pests or diseases. In this article, we will explore the common reasons why purple heart plant leaves turn yellow and provide tips on how to prevent and treat this issue.

Lack of Sunlight

One of the main reasons why purple heart plant leaves turn yellow is a lack of sunlight. Purple heart plants thrive in bright, indirect light conditions. If your plant is not receiving enough light, it can lead to chlorosis, a condition characterized by the yellowing of leaves due to a lack of chlorophyll production.

To prevent this issue, ensure that your purple heart plant is placed in an area with bright, indirect sunlight. A south or west-facing window is ideal for providing the plant with sufficient light. If natural light is limited in your space, you can supplement it with artificial grow lights to ensure your plant receives the necessary amount of light.

Overwatering

Overwatering is another common cause of yellowing leaves in purple heart plants. These plants prefer well-draining soil and are prone to root rot if their roots are constantly saturated. When the roots are unable to receive oxygen due to excess water, it can lead to yellowing and wilting leaves.

To avoid overwatering your purple heart plant, make sure to allow the top inch of soil to dry out before watering again. Use a well-draining potting mix and ensure that the pot has drainage holes to allow excess water to escape. Additionally, avoid letting your plant sit in standing water as this can contribute to root rot.

Underwatering

While overwatering can cause yellowing leaves, underwatering can have a similar effect. When purple heart plants do not receive enough water, their leaves may turn yellow and eventually dry out and die. It is important to strike a balance and provide your plant with adequate hydration.

To determine if your purple heart plant needs water, check the moisture level of the soil by sticking your finger about an inch into the soil. If it feels dry, it’s time to water the plant. When watering, make sure to thoroughly soak the soil until water drains out from the bottom of the pot. This will ensure that the roots receive enough water to keep the plant healthy.

Nutrient Deficiency

A nutrient deficiency can also cause yellowing leaves in purple heart plants. Specifically, a lack of nitrogen can lead to chlorosis and yellowing of the leaves. Nitrogen is an essential nutrient for plants, as it is responsible for promoting healthy leaf growth and overall plant vigor.

To address a nutrient deficiency, you can apply a balanced houseplant fertilizer that contains nitrogen. Follow the instructions on the fertilizer packaging for proper dosage and frequency. It’s important not to over-fertilize your purple heart plant, as this can lead to salt buildup in the soil and cause further damage.

Pest Infestation

Yellowing leaves can also be a sign of pest infestation on your purple heart plant. Common pests that affect these plants include aphids, spider mites, and mealybugs. These pests feed on the plant’s sap, causing damage to the leaves and leading to yellowing, wilting, and stunted growth.

To treat a pest infestation, isolate your affected plant from other plants to prevent the pests from spreading. You can then use insecticidal soap or neem oil to control the pests. Make sure to thoroughly spray both sides of the leaves and repeat the treatment as necessary according to the product instructions.

Disease

In some cases, yellowing leaves can be a symptom of a disease affecting your purple heart plant. Root rot, caused by overwatering and poor drainage, can lead to yellowing and wilting leaves. Fungal diseases such as leaf spot or powdery mildew can also cause yellow spots or patches on the leaves.

If you suspect that your purple heart plant is affected by a disease, it is best to consult with a plant professional or local nursery for a proper diagnosis and treatment plan. They can provide guidance on how to address the specific disease affecting your plant and recommend appropriate fungicides or treatments.

Conclusion

Yellowing leaves in a purple heart plant can be concerning, but with proper care and attention, this issue can be prevented and treated. Ensure that your plant receives adequate sunlight, water it appropriately, and provide it with the necessary nutrients. Keep an eye out for pests or diseases and take prompt action if needed. By following these tips, you can help your purple heart plant maintain its vibrant foliage and thrive in your indoor space.