Peace Lily
Spathiphyllum Wallisii
The Peace Lily, or Spathiphyllum Wallisii, is a popular houseplant known for its elegant white blooms and lush green foliage. Originating from tropical regions, it thrives in low light and adds beauty to any indoor space while also improving air quality.
Everything it needs
9 essentials at a glance
Watering
Water your Peace Lily when the top inch of soil feels dry to the touch, typically every 1-2 weeks.
In warmer months, it may require more frequent watering. Ensure the pot has drainage holes to prevent waterlogging, as over-watering can lead to root rot, while under-watering may cause leaf droop and browning tips.
Light
Peace Lilies thrive in low to bright indirect light.
They prefer a spot with filtered sunlight, as direct sun can scorch their leaves. Ideally, they should receive around 12 hours of indirect light daily, but they can tolerate low light conditions, making them perfect for indoor spaces.
Soil
Use a well-draining potting mix with a pH range of 5.8 to 6.5.
A mix of peat moss, perlite, and pine bark is ideal. Ensure the pot has good drainage to prevent water retention, which can lead to root rot.
Humidity
Peace Lilies prefer humidity levels of 40-60%.
To increase humidity, you can mist the leaves, place a humidifier nearby, or group with other plants. Signs of low humidity include browning leaf tips and drooping leaves.
Temperature
Ideal temperatures range from 65-85°F (18-29°C).
They are hardy in USDA zones 10-12. Protect them from temperatures below 45°F (7°C) and avoid placing them near drafts or heating vents.
Fertilizing
Use a balanced liquid fertilizer with an NPK ratio of 20-20-20 every 6-8 weeks during the growing season (spring and summer).
Reduce feeding in fall and winter. Signs of nutrient deficiency include yellowing leaves and stunted growth.
Pruning
Prune Peace Lilies as needed to remove yellow or brown leaves, which can be done at any time of year.
Use clean, sharp scissors to cut leaves at the base. Deadheading spent flowers can also encourage new blooms.
Repotting
Repot every 1-2 years or when the roots outgrow the pot.
Choose a pot that is 1-2 inches larger in diameter. Signs that it needs repotting include roots growing out of the drainage holes or stunted growth. Gently remove the plant, refresh the soil, and replant.
Propagation
Peace Lilies can be propagated through division.
In spring, carefully remove the plant from its pot and separate the root ball into sections, ensuring each has roots and leaves. Replant in fresh potting mix and water thoroughly. Alternatively, they can be propagated from seeds, though this method is less common.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or nutrient deficiency.
How to fix it
Check the soil moisture and reduce watering frequency. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Brown leaf tips
Why it happens
Low humidity or under-watering.
How to fix it
Increase humidity by misting or using a humidifier, and ensure consistent watering.
Drooping leaves
Why it happens
Under-watering or sudden temperature changes.
How to fix it
Water the plant thoroughly and place it in a stable environment away from drafts.
Root rot
Why it happens
Over-watering and poor drainage.
How to fix it
Remove the plant from the pot, trim away rotten roots, and repot in fresh, dry soil with good drainage.
Pests (e.g., spider mites, aphids)
Why it happens
Dry air or stress from environmental changes.
How to fix it
Increase humidity and treat with insecticidal soap or neem oil to eliminate pests.
Care through the year
Spring
In spring, increase watering frequency as the plant begins to grow actively. Fertilize every 6-8 weeks to promote new growth and blooms.
Summer
During summer, keep the plant in a cool spot away from direct sunlight. Maintain humidity levels and water more frequently as the soil dries out faster.
Fall
In fall, gradually reduce watering as the plant's growth slows. Continue fertilizing until late fall, then stop for the winter months.
Winter
In winter, reduce watering frequency and keep the plant in a warm area. Avoid placing it near cold drafts or heating vents.
Toxicity & Safety
Peace Lilies are mildly toxic to pets and children. Ingestion can cause irritation of the mouth and throat, leading to symptoms like drooling, vomiting, and difficulty swallowing. The entire plant is toxic, but especially the leaves and flowers.
Good to know
Why are my Peace Lily leaves turning yellow?
Yellow leaves on a Peace Lily can indicate over-watering or a lack of nutrients. Check the soil moisture and adjust your watering schedule, and consider fertilizing if needed.
How often should I water my Peace Lily?
Water your Peace Lily when the top inch of soil feels dry, typically every 1-2 weeks. Adjust frequency based on environmental conditions, especially in warmer months.
Can Peace Lilies survive in low light?
Yes, Peace Lilies can thrive in low light conditions, making them ideal for indoor spaces. However, they will bloom more profusely in brighter, indirect light.
How do I increase humidity for my Peace Lily?
To increase humidity, mist the leaves regularly, use a humidifier, or place the plant on a tray filled with water and pebbles to create a more humid microclimate.
When should I repot my Peace Lily?
Repot your Peace Lily every 1-2 years or when you notice roots growing out of the drainage holes. Choose a pot that is 1-2 inches larger in diameter.
Is Peace Lily toxic to pets?
Yes, Peace Lilies are mildly toxic to pets and children. Ingestion can lead to irritation and discomfort, so keep them out of reach of curious pets and kids.
How can I encourage my Peace Lily to bloom?
To encourage blooming, ensure your Peace Lily receives bright, indirect light and is fertilized during the growing season. Consistent watering and humidity also help promote flowers.
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