Peace lilies (*Spathiphyllum*) originate from tropical rainforests in Central and South America, where they thrive under the canopy of taller trees. This means they prefer indirect light, high humidity, and consistently moist soil. When growing indoors, replicating these conditions will help your peace lily flourish. Their natural environment also makes them sensitive to cold temperatures and direct sunlight, which can scorch their leaves.
As understory plants, peace lilies thrive in bright, indirect light. Place them near a north- or east-facing window where they receive filtered sunlight. Avoid direct afternoon sun, which can cause leaf yellowing or browning. If natural light is limited, peace lilies can tolerate low-light conditions, but they may produce fewer flowers. Artificial grow lights can supplement light in darker spaces.
Peace lilies prefer consistently moist soil but dislike soggy conditions. Water when the top inch of soil feels dry to the touch. Use room-temperature water to avoid shocking the roots. Overwatering can lead to root rot, while underwatering causes drooping leaves—a clear sign your plant is thirsty. Peace lilies are sensitive to chlorine and fluoride in tap water, so filtered or distilled water is ideal.
High humidity (60% or higher) mimics their rainforest home. To increase humidity, place the plant on a pebble tray filled with water, use a humidifier, or group it with other plants. Peace lilies prefer temperatures between 65–80°F (18–27°C). Avoid drafts, air conditioning vents, or sudden temperature drops below 55°F (13°C), which can stress the plant.
A well-draining, peat-based potting mix works best for peace lilies. Ensure the pot has drainage holes to prevent waterlogging. Fertilize monthly during the growing season (spring and summer) with a balanced, water-soluble houseplant fertilizer diluted to half strength. Reduce feeding in fall and winter when growth slows. Over-fertilization can cause leaf tip burn.
Remove yellow or brown leaves by cutting them at the base to encourage new growth. Wipe the leaves with a damp cloth to remove dust, which can block sunlight absorption. Trim spent flowers to redirect energy to foliage and future blooms. Regularly check for pests like spider mites or aphids, and treat them with insecticidal soap if needed.
Peace lilies grow slowly and typically need repotting every 1–2 years. Signs it’s time to repot include roots circling the pot or emerging from drainage holes. Choose a pot one size larger with fresh potting mix. Gently loosen the root ball and place the plant at the same depth as before. Water thoroughly after repotting to help the roots settle.
While peace lilies are grown for their glossy leaves, their white spathes (flower-like bracts) are a bonus. To encourage blooming, ensure adequate indirect light and consistent care. Some varieties bloom more readily than others. If your plant isn’t flowering, try adjusting light or fertilization. Blooms typically appear in spring and summer.
Drooping leaves often indicate underwatering, while yellow leaves may signal overwatering or poor drainage. Brown leaf tips suggest low humidity or chemical buildup in water. Lack of flowers can result from insufficient light. Address issues promptly by adjusting care routines. Peace lilies are resilient and often recover quickly with proper attention.
