Pothos (Epipremnum aureum) is a hardy tropical plant known for its adaptability, but temperature plays a critical role in its health and growth. As a plant native to warm, humid environments, pothos thrives within a specific temperature range. Understanding its tolerance limits helps ensure vibrant foliage and longevity.
The optimal temperature range for pothos is between 65°F to 85°F (18°C to 29°C). Within this range, the plant exhibits vigorous growth, with lush leaves and strong root development. Temperatures slightly above or below may be tolerated temporarily, but prolonged exposure outside this range can stress the plant.
Pothos can survive brief dips to 50°F (10°C), but prolonged exposure to temperatures below this threshold causes damage. Signs of cold stress include yellowing leaves, slowed growth, and wilting. Below 45°F (7°C), the plant risks cell damage or death due to frost injury.
While pothos tolerates heat better than cold, temperatures above 90°F (32°C) can lead to dehydration and scorched leaves. High heat combined with low humidity exacerbates stress, causing leaf edges to brown. Ensure adequate watering and shade during heatwaves to mitigate damage.
In winter, protect pothos from drafts and cold windowsills. Move pots away from uninsulated glass or heating vents to avoid sudden temperature swings. In summer, shield the plant from direct afternoon sun, which can overheat leaves and soil.
Pothos prefers 40-70% humidity, which complements its temperature needs. In dry, hot conditions, misting or a pebble tray helps maintain moisture. Conversely, cold air often holds less humidity, so avoid placing the plant near air conditioners or dehumidifiers.
Watch for leaf curling, drooping, or discoloration, which indicate temperature distress. Cold stress may blacken leaf tips, while heat stress causes crispy patches. Adjust the plant’s location promptly if symptoms appear.
Gradually introduce pothos to new environments to prevent shock. For example, when moving plants outdoors in summer, start with a shaded area and incrementally increase light exposure over a week. Reverse the process before bringing them indoors in fall.
Indoor pothos benefits from stable room temperatures, while outdoor plants require seasonal monitoring. In colder climates, bring potted pothos inside before nighttime temperatures drop below 50°F (10°C). In tropical regions, ensure partial shade to prevent overheating.
If exposed to cold, relocate the plant to a warmer spot and trim damaged foliage. For heat stress, hydrate thoroughly and provide temporary shade. Avoid fertilizing during recovery, as stressed roots cannot absorb nutrients efficiently.
