Updated: July 28, 2023

The shingle plant, also known as Monstera adansonii, is a popular houseplant known for its unique and attractive foliage. Its leaves have a distinct pattern of holes and fenestrations, which gives it a shingled appearance. However, sometimes shingle plant leaves may start to curl, which can be concerning for plant owners. In this article, we will explore the various factors that can cause shingle plant leaves to curl and how to address them.

Lack of Water

One of the most common causes of leaf curl in shingle plants is a lack of water. Like many other plants, shingle plants require regular watering to thrive. If the plant is not receiving enough water, its leaves may start to curl as a survival mechanism to reduce water loss through transpiration. To address this issue, it is important to ensure that the plant is receiving adequate water. Check the soil moisture regularly and water the plant when the top inch of soil feels dry. Additionally, make sure the pot has proper drainage to prevent overwatering, which can also lead to leaf curl.

Overwatering

While underwatering can cause leaf curl, overwatering can also have the same effect on shingle plant leaves. When the roots of the plant are constantly saturated with water, they can become waterlogged and unable to uptake oxygen properly. This can result in leaf curl, yellowing, and even root rot. To prevent overwatering, make sure the pot has drainage holes and allow excess water to drain away after watering. It is also important to avoid letting the plant sit in standing water for extended periods.

Low Humidity

Shingle plants are native to tropical regions where humidity levels are generally high. When grown indoors in drier environments, the lack of humidity can cause the leaves to curl. In low-humidity conditions, plants lose moisture more quickly through transpiration, leading to curling leaves. To increase humidity, you can place a humidifier near the plant or use alternative methods such as placing the pot on a tray filled with water and pebbles. Misting the leaves with water can also help to increase humidity temporarily.

Temperature Stress

Extreme temperatures, both hot and cold, can stress shingle plants and cause their leaves to curl. If the plant is exposed to high temperatures, such as near radiators or in direct sunlight, it can result in leaf curling. On the other hand, cold drafts or chilly temperatures can also cause the leaves to curl. It is important to keep the plant away from temperature extremes and provide it with a stable and moderate climate. Ideally, shingle plants thrive in temperatures between 60-85°F (15-29°C).

Nutrient Deficiency

A lack of essential nutrients can also lead to leaf curl in shingle plants. Nutrient deficiencies can occur when the plant is not receiving an adequate supply of essential minerals like nitrogen, phosphorus, or potassium. To prevent nutrient deficiencies, it is important to provide the plant with a balanced fertilizer specifically formulated for houseplants. Regularly fertilizing the plant according to the package instructions can help ensure that it receives all the necessary nutrients for healthy growth.

Pests and Diseases

Pests and diseases can also cause shingle plant leaves to curl. Common pests that affect shingle plants include spider mites and mealybugs. These pests feed on the plant’s sap and can cause damage to the leaves, leading to curling and discoloration. If you suspect pest infestation, thoroughly inspect the plant for signs of pests such as webbing or tiny insects. Treat the infestation with appropriate measures such as wiping the leaves with a mild soap solution or using insecticidal sprays specifically designed for houseplants.

Additionally, fungal or bacterial infections can also cause leaf curling in shingle plants. These infections are often characterized by discoloration, spots, or lesions on the leaves. To prevent and manage these diseases, it is important to provide proper air circulation around the plant, avoid overwatering, and remove any infected leaves promptly.

Conclusion

Leaf curl in shingle plants can be caused by various factors such as lack of water, overwatering, low humidity, temperature stress, nutrient deficiency, pests, and diseases. By understanding the potential causes of leaf curl and taking appropriate measures to address them, plant owners can ensure that their shingle plants thrive with healthy and vibrant foliage. Regular monitoring, proper watering techniques, humidity management, and providing adequate nutrients are key to maintaining the well-being of shingle plants and preventing leaf curl.