Peace Lily
Care Guide and Facts
Spathiphyllum
Easy
Small to Large
Keep Soil Moist
Indirect Light
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Table of Contents
General Description
Peace Lily is one of the most beloved and recognized houseplants around the world and it is known for its graceful appearance, ease of care, and air-purifying properties.
With its glossy green leaves and distinctive white spathes (leaf-like flowers), it adds a touch of elegance and calm to any indoor setting.
Interesting Stats/Numbers
- First described scientifically in the late 19th century
- Has over 40 different species within the genus
- NASA included it in their Clean Air Study, citing its ability to remove airborne toxins such as benzene, formaldehyde, and trichloroethylene
- It can bloom twice a year under ideal conditions
We Love This Plant Because
Peace Lilies offer more than just beauty. Their striking appearance fits effortlessly into modern interiors, while their ability to thrive in low-light environments makes them perfect for spaces that don’t get a lot of sun.
They will dramatically let you know when they need more water and are relatively forgiving, bouncing back quickly from occasional neglect.
Most importantly, their air-purifying qualities mean they can actively contribute to a healthier living space!
Fun Fact
Despite being called “peace lilies,” these plants are not related to true lilies. Their name comes from the white spathe, which resembles a white flag of surrender—a symbol of peace.
Perfect For
- Beginners looking for a low-maintenance plant
- Offices and shaded rooms with indirect light
- People seeking an elegant, sculptural plant with flowers
- Homes in need of natural air purification
Common Name(s)
Peace Lily , Spathe Flower
Latin Name
Spathiphyllum spp.
Family
Araceae
Country of Origin
Peace Lilies are native to tropical regions of the Americas and southeastern Asia.
In the wild, they thrive under the canopy of rainforests, where humidity is high and temperatures are warm.
They prefer stable, humid environments with indirect light and consistent moisture, making them well-suited to most indoor conditions.
Lifespan
While individual leaves and flowers naturally die off, the plant itself can continue growing and thriving with the right conditions.
The lifespan of an indoor Peace Lily typically ranges from 3 to 5 years, but with proper care, many can live over a decade. Some well-maintained Peace Lilies have even been known to last 15 years or more!
Varieties
There are many cultivated varieties of Spathiphyllum, offering a range of sizes and foliage shapes. Some of the most popular include:
- Spathiphyllum ‘Mauna Loa’: One of the most commonly found varieties, reaching up to 1 meter (3 feet) in height.
- Spathiphyllum ‘Sensation’: The largest variety, capable of growing up to 1.8 meters (6 feet) tall.
- Spathiphyllum ‘Domino’: Known for its striking variegated foliage with white and green marbled leaves.
- Spathiphyllum ‘Sweet Pablo’: A mid-sized cultivar with large white blooms.
Care Rating
Peace Lilies are known for their low-maintenance needs and forgiving nature. They tolerate low light and irregular watering better than many other houseplants.
While they do enjoy higher humidity and consistent watering, they will typically recover well if a mistake is made.
The most common problem is overwatering, which can lead to root rot, but this can be managed by using the correct soil mix and watering techniques.
Mature Size
- Height: 30–180 cm (12–72 inches) depending on the variety
- Width: 30–90 cm (12–36 inches)
This makes them suitable for everything from tabletops to floor planters, depending on the cultivar.
Watering Needs
Allow the top soil to dry out slightly between waterings. The soil should be kept evenly moist, but not soggy.
These plants will wilt dramatically when they’re thirsty, but will quickly perk up once watered—making them excellent at signalling their needs.
Ideal Humidity Levels
50%–80%.
Peace Lilies thrive in high humidity environments, similar to their native rainforest floor.
Dry indoor air can lead to browning leaf tips, so misting the plant or using a humidity tray is helpful in drier climates.
Ideal Temperature Levels
18–27°C (65–80°F)
Peace Lilies prefer consistently warm conditions. Avoid cold drafts and temperatures below 10°C (50°F), as this can lead to slowed growth or leaf damage.
Light Needs
Low to Medium Indirect Light.
Peace Lilies are well-known for tolerating low-light conditions, but they thrive in medium, filtered light.
Be aware that too much direct sunlight can scorch the leaves, while too little light may result in fewer blooms.
A bright room with indirect light or a few feet away from a window is ideal.
Recommended Soil Mix
A well-draining, peat-based potting mix is ideal.
You can use a standard indoor plant soil with added perlite or orchid bark will improve drainage and prevent root rot.
The soil should retain moisture without becoming soggy.
Toxicity
Peace Lilies are toxic to cats, dogs, and humans if ingested.
They contain calcium oxalate crystals, which can cause oral irritation, drooling, and stomach upset.
It is best to keep them out of reach of pets and small children.
Propagation Method
Peace Lilies are best propagated by division; this can be easily done while re-potting the plant.
Gently separate the root ball into smaller clumps, each with at least a few leaves and roots, and replant them in individual pots.
This method ensures that the new plants are true to the parent plant and grow successfully.
FAQs
When does a Peace Lily bloom?
Peace Lilies typically bloom in the spring and can also produce flowers periodically throughout the year under the right conditions. With enough light, warmth, and regular care, they may even bloom twice a year.
Why is my Peace Lily drooping?
Common reasons include:
- Underwatering – The most frequent cause. Water thoroughly and it should perk up in a few hours.
- Overwatering – Can cause root rot and drooping. Make sure the soil drains well and the pot has drainage holes.
- Low humidity or cold – These tropical plants like warm, humid conditions.
- Too much direct sun or too little light – Either extreme can stress the plant.
How to revive a Peace Lily?
If your Peace Lily is drooping or looking sad, try these steps:
- Check watering – They often droop from underwatering. Give it a good soak and let excess water drain.
- Check for overwatering – Mushy stems or root rot? Let the soil dry out and reduce watering.
- Trim dead leaves – Use clean scissors to remove any brown or yellow leaves.
- Improve lighting – Bright, indirect light helps them thrive.
- Repot if root-bound – If roots are circling the pot, it’s time for a bigger home.
When to water a Peace Lily?
Water when the top inch of soil feels dry. Most Peace Lilies need water about once a week, but this can vary depending on temperature and humidity. They’re good communicators—droopy leaves usually mean it’s time to water!
Does a Peace Lily need sunlight?
Yes, but not direct sunlight. Peace Lilies love bright, indirect light. Too much sun will scorch the leaves, while too little can reduce blooming. A spot near a north or east-facing window is usually ideal.
Can Peace Lilies be outside?
Yes, but only in warm climates! They can go outdoors in spring and summer if temperatures stay above 60°F (16°C) and they’re placed in shaded or filtered light. Direct sun can scorch their leaves. Bring them in before nights get cool.
When to repot a Peace Lily?
Repot about every 1–2 years, or when you see:
- Roots coming out of the drainage holes
- Water running straight through the pot
- The plant drying out very quickly after watering Spring is the best time to repot, as the plant is entering a growth phase.
How do I repot my Peace Lily?
- Choose a pot 1–2 inches larger in diameter than the current one.
- Gently remove the plant from its old pot.
- Loosen and trim any circling or dead roots.
- Add fresh, well-draining potting mix (a peat-based mix works well).
- Set the plant in the new pot, fill in around it with soil, and water well.
How to prune a Peace Lily?
Use clean, sharp scissors or pruning shears to:
- Remove yellow, brown, or wilted leaves at the base
- Cut spent flowers at the base of the stem once they fade Regular pruning keeps the plant tidy and healthy.
