Peace Lily Flowers Turning Green

Peace lilies (Spathiphyllum spp.) are popular houseplants known for their lush, dark green leaves and striking white flowers, or spathes. Sometimes, however, the white flowers may turn green, which can be perplexing for plant owners. Here are some reasons why this might happen:

1. Natural Aging Process: The most common reason is the natural aging process of the flower. Peace lily spathes often start white and gradually turn green as they mature and eventually brown before dying off.

2. Light Conditions: Peace lilies prefer low to moderate indirect light. Too much light can cause the flowers to age prematurely or turn green more quickly. Conversely, insufficient light can also affect their coloration.

3. Nutrient Levels: Imbalanced fertilization can affect the coloration of the flowers. Too much or too little fertilizer, especially those high in nitrogen, may influence the flowers’ color.

4. Stress Factors: Environmental stress, such as changes in temperature, humidity, water quality, or repotting, can also cause the plant to exhibit unusual characteristics, including color changes in the flowers.

5. Variety: Some peace lily varieties naturally have greenish spathes or may start off green before turning white.

What to Do About It

• Pruning: Remove the green flowers if they bother you. This can help the plant conserve energy and potentially focus on producing more blooms.

• Check Light Levels: Ensure that your peace lily is receiving appropriate light. It should be kept in a spot with plenty of indirect sunlight but not direct sunlight, which can be too harsh.

• Fertilization: Use a balanced houseplant fertilizer every 6-8 weeks during the growing season (spring and summer). Avoid over-fertilizing, as this can cause more harm than good.

• Repotting: Ensure your plant is not root-bound and is in well-draining soil. Repot if necessary, typically every 1-2 years.

• Consistent Care: Maintain a consistent watering schedule, ensuring the soil stays moist but not soggy. Peace lilies do well with a humidity level of around 50-60%. Mist the leaves if the air is too dry, particularly in winter when indoor heating can lower humidity levels.

Final Thoughts

While green flowers can be unexpected, they are usually not a cause for concern. By paying attention to the plant’s environment and care regimen, you can often manage or mitigate this issue. If you continue to observe unusual changes despite optimal care, it may be helpful to consult with a local nursery or horticulturist for more personalized advice.