Updated: July 1, 2023

Introduction

Pothos plants are popular houseplants known for their beautiful trailing vines and lush green leaves. However, one common issue that many pothos plant owners face is the yellowing of leaves. If you’ve noticed your pothos plant’s leaves turning yellow, it’s important to understand the possible causes and how to address them to keep your plant healthy and vibrant.

Overwatering

One of the most common reasons for yellowing leaves in pothos plants is overwatering. Pothos plants prefer slightly moist soil but can easily suffer from root rot if overwatered. When the roots are constantly sitting in waterlogged soil, they cannot absorb oxygen properly, leading to stress and yellowing of the leaves.

To avoid overwatering your pothos plant, make sure to check the moisture level of the soil before watering. Stick your finger about an inch into the soil; if it feels dry, it’s time to water. Additionally, ensure that your pothos plant is potted in well-draining soil and has proper drainage holes in its container.

Underwatering

While overwatering is a common problem, underwatering can also cause yellowing leaves in pothos plants. When a pothos plant doesn’t receive enough water, it goes into survival mode and conserves energy by shedding its older leaves. These older leaves then turn yellow before eventually falling off.

To prevent underwatering your pothos plant, monitor the soil moisture regularly. If the top inch of soil feels dry, it’s time to water your plant thoroughly until water drains out of the bottom of the pot. However, be cautious not to let your pothos sit in standing water for an extended period.

Lack of Light

Another potential cause of yellowing leaves in pothos plants is a lack of light. Pothos plants thrive in bright, indirect light, and without enough light, their leaves can lose their vibrant green color and turn yellow. If your pothos is placed in a spot with insufficient light, it may start to show signs of stress by yellowing or even browning.

To address this issue, consider relocating your pothos plant to a brighter area of your home. Place it near a window with filtered sunlight or provide artificial lighting such as fluorescent grow lights if natural light is limited. Just be cautious not to expose the plant to direct sunlight, as it can scorch the leaves.

Nutrient Deficiency

Pothos plants generally don’t require frequent fertilization, but a lack of essential nutrients can cause yellowing leaves. Nitrogen, iron, and potassium deficiencies are common culprits in pothos plants’ yellowing leaves. Nitrogen deficiency typically causes older leaves to turn pale yellow first, while iron deficiency leads to yellowing between the veins of new leaves.

To address nutrient deficiencies, you can use a balanced houseplant fertilizer. Follow the instructions on the fertilizer package carefully and avoid overfertilizing, as it can lead to other problems. Consider using a slow-release fertilizer or diluting liquid fertilizer to prevent burning the roots of your pothos plant.

Pest Infestation

Pest infestations can also cause yellowing leaves in pothos plants. Common pests that attack pothos plants include spider mites, aphids, and mealybugs. These pests feed on the plant’s sap, causing stress and discoloration of the leaves.

Inspect your pothos plant regularly for signs of pests such as webbing, tiny crawling insects, or sticky residue on the leaves. If you notice any infestation, isolate the affected plant from other plants and treat it immediately with an appropriate pesticide or insecticidal soap. Remember to follow the instructions on the product carefully and repeat the treatment if necessary.

Conclusion

Yellowing leaves in pothos plants can be a sign of various issues, including overwatering, underwatering, lack of light, nutrient deficiencies, or pest infestations. By understanding these potential causes and taking appropriate measures, you can prevent and address yellowing leaves, ensuring that your pothos plant remains healthy and vibrant. Remember to monitor the soil moisture, provide adequate light, fertilize when necessary, and regularly inspect your plants for pests. With proper care, your pothos plant will thrive and bring beauty to your indoor space for years to come.