Dealing with Peace Lily Yellow Leaves: Tips and Tricks
If you own a peace lily plant and have noticed its leaves turning yellow, you’re not alone!
This is a common problem that can be caused by several factors. Fortunately, there are ways to fix yellow leaves on your peace lily.
Key Takeaways
- Yellow leaves on peace lilies can be caused by various factors.
- Adjusting watering habits and using purified or filtered water can help with overwatering or underwatering issues, as well as water quality problems.
- Peace lilies prefer bright, indirect sunlight and stable temperature and humidity conditions.
- Nutrient problems can be addressed with a balanced liquid fertilizer or repotting in fresh soil.
- If yellowing leaves are due to old leaves, pests, or diseases, removing affected leaves or addressing the infestation is necessary.
1. Overwatering and Underwatering
Overwatering and underwatering are common causes of yellow leaves on peace lilies.
When you overwater, the soil becomes too saturated, and the roots can become waterlogged, leading to root rot.
On the other hand, when you underwater, the soil becomes too dry, and the roots do not receive adequate water, leading to dehydration.
Both of these conditions can cause yellowing leaves and may eventually lead to plant death.

Maintaining Proper Watering Habits for Healthy Peace Lilies
To fix yellow leaves on your peace lily, you need to adjust your watering habits.
Issue | Solution |
---|---|
Yellow leaves | Water thoroughly to soak the soil, but avoid overwatering. Group plants for increased humidity. |
Proper Drainage | Adjust watering habits. Check soil moisture; water when the top inch is dry. Avoid over-soaking. |
Self-Watering Containers | Consider using self-watering containers for consistent moisture. |
Underwatering | Water thoroughly to soak soil, but avoid overwatering. Group plants for increased humidity. |
2. Harnessing the Power of Purified Water to Combat Peace Lily Yellow Leaves
To fix yellow leaves on a peace lily, one more potential cause to consider is water quality.
Using purified or filtered water instead of tap water can help prevent yellowing leaves. This is because tap water can contain chemicals, such as chlorine, which can be harmful to peace lilies.
Additionally, tap water can have minerals that can accumulate in the soil over time, leading to nutrient imbalances and yellowing leaves.
By using purified or filtered water, you can ensure that your peace lily is getting high-quality, chemical-free water that promotes healthy leaf growth.
You can purchase purified or filtered water at most grocery stores or invest in a water filter if you prefer to use tap water.

3. Shedding Light on the Connection Between Light Exposure and Peace Lily Yellow Leaves
Peace lilies prefer bright, indirect sunlight, which means they need access to light but not too much of it.
If they are exposed to too much direct sunlight, their leaves can become scorched and turn yellow. Conversely, if they are not exposed to enough light, they may also develop yellow leaves.
Optimal Peace Lily Placement for Sunlight
The ideal location for a peace lily is near a north or east-facing window, where they can receive bright but indirect sunlight.
If you don’t have access to such windows, you can also place your plant in a room with bright but filtered light.
Avoid placing your plant near south or west-facing windows, as the direct sunlight can be too intense.

If you notice that your peace lily’s leaves are turning yellow, consider adjusting its exposure to light.
If it is receiving too much direct sunlight, move it to a shadier location. Conversely, if it is not receiving enough light, try moving it to a brighter spot or supplementing its light with artificial light sources.
4. Temperature and Humidity for Healthy Peace Lilies
Temperature fluctuations and low humidity can also cause yellowing leaves, so maintaining a stable temperature and increasing humidity through misting or using a humidifier can be helpful.
Peace lilies prefer temperatures between 65-80°F (18-27°C) and a relative humidity of 40-60%. If the air is too dry, misting the plant leaves with water can help raise the humidity levels.
Another way to increase humidity is to use a humidifier in the room.
This is especially important during the winter months when indoor heating can cause the air to become dry. Placing a tray of water near the plant or grouping it with other plants can also help increase humidity levels.

Keep your peace lily away from cold drafts or hot air vents, which can cause fluctuations in temperature.
If you notice that your peace lily is still experiencing yellow leaves despite your efforts to maintain a stable temperature and humidity, it could be a sign of pest or disease problems.
In this case, it’s important to remove affected leaves and address any infestation promptly.
5. Nutrient Problems
If your peace lily’s yellow leaves are due to nutrient deficiencies, adding a balanced liquid fertilizer or repotting in fresh soil can help.
Peace lilies are known to require occasional fertilization to maintain their health and growth. If your peace lily’s leaves start to turn yellow, it could be a sign that it is lacking essential nutrients such as nitrogen, phosphorus, or potassium.
To address this issue, you can add a balanced liquid fertilizer to the soil.
- Balanced Liquid Fertilizer:
- Dilute according to label instructions.
- Apply monthly during the growing season.
- Reduce frequency during the dormant phase to avoid over-fertilization.
Repotting your peace lily in fresh soil can also help to rejuvenate nutrient levels.
- Repotting in Fresh Soil:
- Use high-quality potting soil with good drainage.
- Prevent waterlogging to avoid root rot.

Remember to keep a close eye on your peace lily’s leaves to track their progress after taking these steps.
6. Old Leaves, Pests, and Diseases
Finally, if the yellowing is due to old leaves, pests, or diseases, it is important to take action to address the issue.
Old leaves will naturally yellow and can be removed by cutting them off at the base of the stem. This will redirect the plant’s energy towards new growth and help it to thrive.
Dealing with Pests on Your Peace Lily
Pests, such as spider mites or scale insects, can cause yellowing leaves as they feed on the plant’s sap.
- Regular Inspection:
- Check for signs of infestation like sticky residue, webbing, or small bugs on stems or leaves.
- Isolate the Plant:
- If an infestation is detected, separate the affected plant from others.
- Appropriate Treatment:
- Use an insecticide or horticultural oil suitable for the pest.
- Follow application instructions carefully.
- Safety First:
- Wear protective gear when applying the product to protect yourself.
Addressing Diseases in Your Peace Lily
Diseases can also cause yellowing leaves, such as root rot or fungal infections.
- Preventive Measures:
- Avoid overwatering.
- Ensure proper drainage to prevent disease.
- Detecting Disease:
- If you suspect a disease, inspect your plant for symptoms.
- Taking Action:
- Remove affected leaves or parts to halt the spread of infection.
- Consider replanting in fresh soil if necessary.
- Seek Expert Advice:
- Consult a plant expert or refer to gardening guides for guidance on specific diseases and treatments.
By removing affected leaves or addressing infestations promptly and effectively, you can help your peace lily regain its health and beauty.