Updated: June 30, 2023

The mermaid tail plant (Senecio peregrinus) is a popular succulent that gets its name from its unique leaf shape, resembling the tail of a mythical mermaid. This plant is known for its trailing growth habit and attractive green leaves with distinct round “beads” along the edges. However, sometimes mermaid tail plant owners may notice that the leaves start to curl, which can be concerning. In this article, we will explore the possible causes of leaf curling in mermaid tail plants and discuss ways to prevent and treat this issue.

Insufficient Lighting

One of the most common reasons for leaf curling in mermaid tail plants is insufficient lighting. These plants prefer bright, indirect light and may struggle if they are placed in low-light conditions. When not receiving enough light, the plant may attempt to conserve energy by curling its leaves inward. If you notice your mermaid tail plant’s leaves curling, try moving it to a brighter spot in your home or providing artificial lighting using grow lights.

Overwatering or Underwatering

Improper watering practices can also lead to leaf curling in mermaid tail plants. Overwatering, where the soil remains consistently wet for extended periods, can cause root rot and hinder the plant’s ability to take up water properly. As a result, the leaves may curl as a response to stress. On the other hand, underwatering can cause dehydration and leaf curling as well.

To avoid overwatering, ensure that the soil has proper drainage and allow it to dry out between waterings. It is recommended to water your mermaid tail plant thoroughly and then wait until the top inch of soil feels dry before watering again. Additionally, check if the pot has drainage holes to allow excess water to escape.

Lack of Humidity

Mermaid tail plants thrive in environments with moderate to high humidity levels. If the air in your home is dry, especially during the winter months or in centrally heated rooms, the plant may experience leaf curling. To increase humidity around your mermaid tail plant, you can try misting the leaves with water, placing a tray of water near the plant, or using a humidifier.

Temperature Extremes

Extreme temperatures can also cause stress to mermaid tail plants and result in leaf curling. These plants prefer temperatures between 60°F and 75°F (15°C and 24°C) and are sensitive to both cold drafts and excessive heat. If your mermaid tail plant is exposed to temperature extremes, it may respond by curling its leaves. Ensure that you keep your plant away from air conditioning units, heating vents, and drafty windows.

Nutrient Deficiencies

Like any other plant, mermaid tail plants require proper nutrition to thrive. Insufficient nutrients can cause various issues, including leaf curling. If the soil lacks essential nutrients such as nitrogen, phosphorus, or potassium, the plant’s growth may be stunted, and its leaves may exhibit abnormal curling.

To ensure your mermaid tail plant receives adequate nutrition, consider using a balanced liquid fertilizer specifically formulated for succulents. Follow the instructions on the product label for application rates and frequency. It is important not to over-fertilize as this can lead to salt buildup in the soil, which can also cause leaf curling.

Pests and Diseases

Pests and diseases can also contribute to leaf curling in mermaid tail plants. Common pests that affect succulents include mealybugs, aphids, and spider mites. These pests feed on the plant’s sap, causing damage to the leaves and stems. In response to pest infestation, the plant may exhibit leaf curling as a defense mechanism.

Inspect your mermaid tail plant regularly for any signs of pests, such as small insects, webbing, or sticky residue on the leaves. If you notice an infestation, treat it promptly using natural or chemical insecticides, following the manufacturer’s instructions. Additionally, ensure that your plant is not exposed to extreme temperature fluctuations, as this can weaken its defenses and make it more susceptible to pests and diseases.

Genetic Factors

In some cases, leaf curling in mermaid tail plants may be attributed to genetic factors. Certain plant varieties or individual plants may naturally exhibit curled leaves. If your mermaid tail plant has always had curled leaves since its growth stage, it is likely due to its genetic makeup and not a cause for concern.

Conclusion

Leaf curling in mermaid tail plants can be caused by various factors, including insufficient lighting, improper watering, low humidity, temperature extremes, nutrient deficiencies, pests, diseases, and genetic factors. By understanding these potential causes and implementing proper care practices, you can help prevent leaf curling and maintain the health and beauty of your mermaid tail plant. Remember to provide adequate lighting, water your plant appropriately, maintain humidity levels, avoid temperature extremes, provide proper nutrition, monitor for pests and diseases, and embrace the unique characteristics of your plant if it has naturally curly leaves. With proper care, your mermaid tail plant will continue to enchant you with its distinctive foliage for years to come.