Golden Pothos is a popular houseplant known for its trailing vines. Leaf curling is a common symptom of stress, indicating the plant is trying to conserve moisture or protect itself.
Why Golden Pothos Leaves Curl
Underwatering
When a Golden Pothos does not receive enough water, its leaves curl inward as a defensive mechanism to reduce surface area and minimize water loss. The plant’s cells lose turgor pressure, causing the leaves to become limp and eventually crispy at the edges. Diagnose by checking if the top two to three inches of soil are completely dry and the pot feels unusually light. Thoroughly water until it drains from the bottom, ensuring the entire root ball is saturated.
Overwatering
Consistently overwatering a Golden Pothos can also lead to leaf curling, though symptoms differ. Saturated soil deprives roots of oxygen, causing root rot and impairing the plant’s ability to absorb water. Leaves may turn yellow, feel mushy, and curl downwards or droop, distinct from the crispness of underwatering. Diagnose by checking for soggy soil, a foul odor, or soft, dark roots. Allow soil to dry significantly between waterings; repot into fresh, well-draining soil if root rot is severe.
Low Humidity
Golden Pothos are native to tropical environments with high humidity. In drier indoor climates, especially during winter or with air conditioning, the plant struggles to retain moisture through its leaves. This lack of moisture causes leaves to curl tightly inward, sometimes appearing dull or developing crispy edges, as the plant attempts to conserve moisture. Increase humidity with a pebble tray, room humidifier, or by grouping plants.
Too Much Light
While Golden Pothos appreciates bright light, direct, intense sunlight is detrimental, causing leaves to curl protectively. Prolonged exposure can scorch foliage, leading to bleached or faded patches, and leaves may cup or curl inward to minimize light exposure. Observe if curling occurs predominantly on leaves exposed to direct sunbeams. Relocate to a spot with bright, indirect light, such as a few feet from a south-facing window or near an east or north-facing window.
Temperature Stress
Extreme temperatures (too cold or too hot) can shock a Golden Pothos, causing its leaves to curl. Sudden temperature drops, cold drafts from windows, or proximity to heat sources like radiators can disrupt the plant’s metabolic processes. Leaves may wilt, show discolored patches, or curl as a sign of distress and self-protection. Maintain a stable room temperature (65-85°F / 18-29°C), avoiding drafty doors or heating vents.
Pests
Sap-sucking pests (spider mites, mealybugs, aphids) can infest Golden Pothos, causing leaves to curl and distort as they feed. These tiny insects pierce plant cells and extract vital fluids, weakening the plant and leading to symptoms like stunted growth, yellowing, or misshapen leaves. Inspect the undersides of leaves, stems, and leaf axils for tiny webs, cottony masses, or small, slow-moving insects. Treat infestations by wiping affected areas with a damp cloth, applying insecticidal soap, or using neem oil.
Preventing Future Golden Pothos Leaf Curling
Preventing leaf curling involves consistent care practices. Establish a regular watering schedule, allowing topsoil to dry between waterings to prevent both underwatering and overwatering. Provide bright, indirect light to support healthy growth and avoid light stress.
Maintain adequate humidity, especially in dry indoor environments. Keep the plant within its preferred temperature range, away from drafts and extreme sources. Regularly inspect for pests for early detection and intervention. Using a well-draining potting mix also supports root health, which is foundational to preventing many common issues.