Pothos (*Epipremnum aureum*) is a tropical plant that thrives in moist but well-draining soil. From the plant's perspective, consistent moisture is key, but overwatering can lead to root rot, while underwatering causes stress. The plant's roots absorb water and nutrients, and its leaves transpire, releasing moisture into the air. Balancing these processes is essential for healthy growth.
Several factors determine how often and how much to water a pothos plant:
a. Light Exposure: Plants in bright, indirect light dry out faster and need more frequent watering than those in low light.
b. Temperature and Humidity: Warmer, drier environments increase transpiration, requiring more water. High humidity slows soil drying.
c. Pot Size and Material: Small pots dry out quickly, while large pots retain moisture longer. Porous materials like terracotta wick away moisture faster than plastic or ceramic.
d. Soil Type: Well-draining mixes (e.g., peat, perlite, or orchid bark) prevent waterlogging but may need more frequent watering than dense soils.
Pothos prefers a "soak and dry" approach. Water thoroughly when the top 1-2 inches of soil feel dry to the touch. This typically translates to:
a. Weekly in Bright Light: Plants in bright, indirect light may need watering every 5-7 days.
b. Biweekly in Low Light: In dim conditions, watering every 10-14 days may suffice.
c. Seasonal Adjustments: Reduce frequency in winter (growth slows) and increase in summer (active growth).
Pothos dislikes soggy roots. Water until excess drains from the pot's bottom, ensuring the entire root ball is hydrated. Key tips:
a. Avoid Shallow Watering: Light sprinkles encourage shallow roots. Deep watering promotes robust root systems.
b. Drainage is Critical: Empty saucers after watering to prevent root rot.
c. Observe Plant Signals: Drooping leaves indicate thirst, while yellowing suggests overwatering.
a. Overwatering: Yellow leaves, mushy stems, and a foul soil smell indicate root rot. Let soil dry completely before resuming watering.
b. Underwatering: Wilted, crispy leaves and slow growth signal dehydration. Soak the pot in water for 10-15 minutes to rehydrate.
a. Use Room-Temperature Water: Cold water shocks roots, while hot water damages them.
b. Consider Bottom-Watering: Place the pot in a tray of water for 20-30 minutes to let roots absorb moisture evenly.
c. Monitor Soil Moisture: A moisture meter or finger test helps avoid guesswork.
