Updated: June 28, 2023

The Mishima plant, also known as Fatsia japonica or Japanese aralia, is a popular houseplant that is prized for its large, glossy leaves and unique shape. However, one common issue that many Mishima plant owners face is the curling of the leaves. This can be a cause for concern, as it may indicate an underlying problem with the plant’s health. In this article, we will explore the various factors that can cause Mishima plant leaves to curl and discuss how to address these issues.

Insufficient Watering

One of the most common reasons for Mishima plant leaves to curl is insufficient watering. Like most houseplants, the Mishima plant requires regular watering to thrive. If the plant does not receive enough water, it will start to wilt and curl its leaves in an attempt to conserve moisture. To check if your Mishima plant is suffering from dehydration, gently touch the soil with your finger. If it feels dry to the touch, it is time to water the plant. Ensure that you water it thoroughly until the excess water drains out from the bottom of the pot.

Overwatering

While underwatering can cause Mishima plant leaves to curl, overwatering can have a similar effect. When a Mishima plant receives too much water, its roots can become waterlogged, leading to root rot. As a result, the plant may exhibit symptoms such as yellowing leaves and curling. To prevent overwatering, it is essential to have proper drainage in your pot and avoid allowing excess water to accumulate in the saucer beneath it. Additionally, ensure that you only water your Mishima plant when the top inch of soil feels dry.

Temperature and Humidity

The temperature and humidity levels in your home can also impact the health of your Mishima plant and cause its leaves to curl. These plants prefer temperatures ranging from 65 to 75 degrees Fahrenheit (18 to 24 degrees Celsius) and thrive in moderately humid environments. If the temperature is too high or too low, or if the humidity levels are too low, the plant may react by curling its leaves. To create an ideal environment for your Mishima plant, consider placing it in a location away from drafts and direct sunlight. You can also increase humidity by misting the leaves or using a humidifier.

Pests

Pests such as spider mites and aphids can infest Mishima plants and cause them to curl their leaves. These tiny insects feed on the plant’s sap, weakening it and leading to various symptoms, including curling leaves. To determine if pests are causing the issue, carefully inspect the plant’s leaves and stems for any signs of infestation. Look for small webs, tiny moving insects, or curling leaves with discoloration. If you discover pests, it is crucial to take prompt action to eradicate them. You can use insecticidal soap or neem oil to treat the affected plant parts and prevent further damage.

Nutrient Deficiencies

Another possible cause of Mishima plant leaf curling is nutrient deficiencies. These plants require a balanced supply of nutrients to stay healthy and develop properly. A lack of essential nutrients such as nitrogen, potassium, or iron can result in curled leaves, along with other symptoms like yellowing or stunted growth. To address nutrient deficiencies, consider using a balanced fertilizer specifically formulated for houseplants. Follow the instructions on the packaging carefully and feed your Mishima plant regularly during its growing season.

Disease

In some cases, leaf curling in Mishima plants can be a symptom of a fungal or bacterial disease. Diseases like powdery mildew or leaf spot can cause the leaves to curl, wilt, or develop spots. If you suspect disease as the cause of leaf curling, it is crucial to take immediate action to prevent the spread of the infection. Remove any affected leaves and isolate the plant from other healthy plants to minimize the risk of contamination. Additionally, make sure to provide proper air circulation and avoid overwatering, as these conditions can contribute to the development and spread of diseases.

Conclusion

Curling leaves in Mishima plants can be caused by various factors, including insufficient watering, overwatering, temperature and humidity imbalances, pests, nutrient deficiencies, or disease. Identifying the underlying cause is crucial to effectively address the issue and restore the plant’s health. By adjusting watering practices, providing suitable temperature and humidity levels, addressing pest infestations, ensuring proper nutrition, and taking prompt action against diseases, you can help your Mishima plant thrive and prevent leaf curling. Remember to regularly inspect your plant for any signs of distress and provide the necessary care to keep it healthy and beautiful.