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What Causes Pothos Plant Water Leaves to Curl?

Updated: July 14, 2023

Pothos plants, also known as Devil’s Ivy, are popular houseplants due to their attractive foliage and easy care requirements. However, like any other plant, they can experience issues that may affect their appearance and overall health. One common problem that pothos plant owners may encounter is the curling of leaves when watering. In this article, we will explore the various causes of this issue and provide tips on how to address it.

Overwatering

One of the most common causes of pothos leaves curling after watering is overwatering. Pothos plants prefer slightly moist soil but can suffer if they are constantly sitting in waterlogged conditions. When the roots are consistently saturated, it can lead to root rot, which affects the plant’s ability to absorb nutrients and water properly.

To determine if your pothos plant is suffering from overwatering, check the soil moisture level. Stick your finger about an inch deep into the soil – if it feels wet or soggy, it is a sign of overwatering. Additionally, inspect the roots for any signs of rot or discoloration.

To remedy overwatering, allow the soil to dry out before watering again. Ensure that the pot has proper drainage holes to allow excess water to escape. Consider repotting your pothos in a well-draining potting mix to prevent future issues.

Underwatering

Although less common than overwatering, underwatering can also cause pothos leaves to curl after watering. When a pothos plant does not receive enough water, it goes into survival mode and tries to conserve moisture by curling its leaves. This response helps reduce the leaf surface area exposed to sunlight and evaporation.

To determine if underwatering is the culprit behind your pothos leaves curling after watering, check the soil moisture level again. If the soil feels dry and crumbly, it is an indication that your plant needs more water.

To address underwatering, make sure you are watering your pothos plant adequately. Water thoroughly until water runs out of the drainage holes, ensuring that the soil is evenly moist. However, be cautious not to overwater as mentioned earlier.

Temperature and Humidity

Pothos plants thrive in moderate temperatures and prefer humidity levels between 40% and 60%. Extreme temperature fluctuations or excessively low humidity can cause stress to the plant, leading to curled leaves.

If you suspect that temperature or humidity is the issue, try moving your pothos plant to a more suitable location. Keep it away from drafts, air conditioning vents, or radiators that may cause rapid changes in temperature. Increasing humidity levels around the plant by misting it regularly or placing a tray of water nearby can also help alleviate the problem.

Pests

Pests can wreak havoc on houseplants, including pothos plants. Some common pests that may cause leaves to curl after watering include spider mites, thrips, and aphids. These pests feed on the sap of the leaves, causing damage and distortion.

Inspect your plant carefully for signs of pests such as tiny webs, small insects, or sticky residue on the leaves. If you notice any pests, take immediate action to control them. Use insecticidal soap or neem oil spray to treat the affected plant parts and surrounding areas. Regularly wiping the leaves with a damp cloth can also help keep pests at bay.

Nutrient Deficiency

A lack of essential nutrients can also contribute to pothos leaves curling after watering. Nutrient deficiencies can occur when the soil lacks sufficient nutrients or when the plant is unable to uptake nutrients due to root issues.

To determine if nutrient deficiency is causing leaf curling, examine the overall health of your pothos plant. Look for any signs of yellowing or discoloration in the leaves, stunted growth, or poor overall appearance. These can all be indicators of a nutrient problem.

To address nutrient deficiencies, consider fertilizing your pothos plant regularly with a balanced fertilizer. Follow the manufacturer’s instructions for application rates and frequency. Additionally, ensure that your pothos is potted in nutrient-rich soil and consider using a slow-release fertilizer for long-term feeding.

In conclusion, several factors can cause pothos leaves to curl after watering. Overwatering, underwatering, temperature and humidity fluctuations, pests, and nutrient deficiencies are all potential culprits. By identifying the underlying cause and taking appropriate measures, you can help your pothos plant regain its health and vitality. Remember to always monitor your plant’s moisture levels, provide suitable growing conditions, and address any issues promptly to ensure the well-being of your pothos plant.