Learn how to grow the elegant peace lily, one of the best flowering houseplants for low light. Perfect for beginners, this air-purifying beauty produces graceful white blooms and thrives indoors.
Sarah Green
Horticulturist and garden expert with 15+ years of experience growing vegetables, herbs, and houseplants. Certified Master Gardener.
Introduction to Growing Peace Lily
Peace Lily (Spathiphyllum) is one of the most elegant and rewarding houseplants you can grow. With its glossy dark green leaves and graceful white "flowers" (actually modified leaves called spathes), the peace lily brings a touch of tropical elegance to any space.
Native to the rainforest floors of Central and South America, peace lilies are adapted to thrive in the low light conditions that make other plants struggle. They're one of the few houseplants that will actually bloom indoors without bright light, producing their iconic white spathes that can last for weeks.
NASA's Clean Air Study ranked peace lilies as one of the most effective air-purifying plants, removing pollutants like benzene, formaldehyde, and ammonia. While they do require more consistent watering than some easy-care plants, peace lilies make it easy by dramatically drooping when thirsty—then perking right back up after a drink!
Why Grow Peace Lily?
Peace lilies offer many benefits:
- Indoor flowering: One of the few plants that blooms in low light
- Top air purifier: NASA's best performer for pollutant removal
- Elegant appearance: Glossy leaves and graceful white blooms
- Communicative: Tells you when it needs water by drooping
- Long-lived: Can thrive for 10+ years with good care
- Adaptable: Tolerates low light better than most plants
Understanding Peace Lily Basics
Growth Habit
| Characteristic | Details |
|---|---|
| Type | Tropical herbaceous perennial |
| Height | 1-6 feet (variety dependent) |
| Spread | 1-4 feet |
| Leaf type | Glossy, lance-shaped |
| Growth rate | Moderate |
Toxicity Warning
| Warning | Details |
|---|---|
| Toxic to | Cats, dogs, humans |
| Contains | Calcium oxalate crystals |
| Symptoms if eaten | Burning mouth, drooling, vomiting |
| Prevention | Keep away from pets and children |
Important: Peace lilies are toxic if ingested. Keep out of reach of curious pets and children!
Popular Peace Lily Varieties
Small/Dwarf Varieties (1-2 feet)
| Variety | Features | Notes |
|---|---|---|
| Wallisii | Classic species; compact | Original species |
| Chopin | Compact; heavy bloomer | Popular in North America |
| Power Petite | Very compact | Great for desks |
Medium Varieties (2-4 feet)
| Variety | Features | Notes |
|---|---|---|
| Mauna Loa Supreme | 9" leaves; large flowers | Very popular |
| Domino | Variegated leaves | White streaks on foliage |
| Clevelandii | Elongated leaves | Graceful form |
Large/Giant Varieties (4-6 feet)
| Variety | Features | Notes |
|---|---|---|
| Sensation | Largest variety; ribbed leaves | Statement plant |
| White Lightning | Large; heavy flowering | Impressive specimen |
| Figaro | Award-winning | Dutch Horti-fair winner |
What You'll Need
Essential Supplies
- Peace lily plant
- Pot with drainage hole
- Well-draining potting mix
- Location with indirect light
Optional but Helpful
- Humidity tray
- Liquid fertilizer
- Spray bottle for misting
- Distilled water (if tap water is hard)
Step-by-Step Growing Guide
Step 1: Choose the Right Location
Peace lilies are famous for low light tolerance:
| Light Level | Effect | Best For |
|---|---|---|
| Low | Survives; fewer flowers | Dark rooms |
| Medium indirect | Good growth; moderate bloom | Most locations |
| Bright indirect | Best growth and flowering | Near windows |
| Direct sun | Burns leaves | Avoid! |
Location tips:
- East-facing window: Ideal
- North-facing window: Works well
- Office fluorescent lights: Good
- Bathroom: Perfect (humidity!)
- 6-8 feet from bright window
Step 2: Pot and Soil
| Factor | Requirement |
|---|---|
| Pot size | Snug is OK; don't overpot |
| Drainage | Essential |
| Soil | Rich, well-draining potting mix |
| pH | Slightly acidic (5.8-6.5) |
Soil mix options:
- Quality indoor potting mix
- Add perlite for extra drainage
- African violet mix works well
Warning: Using too large a pot keeps soil wet and causes root rot!
Step 3: Watering (The Key to Success!)
| When to Water | Indicator |
|---|---|
| Water | When top 1-2" of soil is dry |
| Frequency | Every 4-7 days (varies) |
| Method | Water thoroughly until it drains |
| Water type | Room temperature; filtered preferred |
The Peace Lily "Droop Signal":
- Peace lilies dramatically wilt when thirsty
- They perk back up within hours after watering
- Don't wait for extreme wilting regularly—it stresses the plant
Signs of watering issues:
| Problem | Symptoms |
|---|---|
| Overwatering | Yellow leaves; root rot; mushy stems |
| Underwatering | Drooping; brown leaf tips; crispy edges |
Step 4: Humidity (Important!)
Peace lilies are tropical plants that love humidity:
| Factor | Ideal | Tolerable |
|---|---|---|
| Humidity | 50-60%+ | 40%+ |
| Symptoms of low humidity | Brown leaf tips |
Increasing humidity:
- Mist leaves regularly
- Use a pebble tray with water
- Place in bathroom or kitchen
- Group with other plants
- Use a humidifier
Step 5: Temperature
| Factor | Ideal | Tolerable |
|---|---|---|
| Temperature | 65-80°F | 55-85°F |
| Minimum temp | 55°F | Below causes damage |
| Drafts | Avoid | Cold and hot air currents |
Step 6: Fertilizing
| Timing | Fertilizer | Frequency |
|---|---|---|
| Spring/Summer | Balanced liquid | Every 6 weeks |
| Fall/Winter | None or light | Reduce significantly |
| Strength | Half of label rate | Peace lilies are light feeders |
Tips:
- Over-fertilizing burns roots and leaf tips
- Feed only during active growth
- When in doubt, skip it
Step 7: Encouraging Blooms
| Factor | Optimization |
|---|---|
| Light | Brighter = more flowers |
| Plant maturity | 1+ year old |
| Root binding | Slightly snug encourages blooming |
| Health | Healthy plants bloom more |
Propagation
Peace lilies are propagated by division:
Division Method
| Step | Action |
|---|---|
| 1 | Wait until plant has multiple crowns |
| 2 | Water a few days before dividing |
| 3 | Remove plant from pot |
| 4 | Gently separate crowns with roots |
| 5 | Each division needs roots + leaves |
| 6 | Pot in fresh soil |
| 7 | Water and place in indirect light |
Note: Peace lilies cannot be propagated from leaf or stem cuttings—only division!
Common Problems and Solutions
Brown Leaf Tips (Most Common!)
| Cause | Solution |
|---|---|
| Low humidity | Increase humidity; mist regularly |
| Fluoride in water | Use filtered/distilled water |
| Over-fertilizing | Reduce fertilizer; flush soil |
| Underwatering | Water more consistently |
Yellow Leaves
| Cause | Solution |
|---|---|
| Overwatering | Let soil dry more; check drainage |
| Natural aging | Lower leaves yellow naturally; normal |
| Too much light | Move to shadier spot |
No Flowers
| Cause | Solution |
|---|---|
| Insufficient light | Move to brighter location |
| Too young | Wait for maturity (1+ year) |
| Needs repotting | Slightly rootbound encourages bloom |
| Wrong season | Blooms mostly spring/summer |
Pest Issues (Uncommon)
| Pest | Signs | Treatment |
|---|---|---|
| Mealybugs | White cottony masses | Alcohol swab; insecticidal soap |
| Spider mites | Fine webbing; stippled leaves | Increase humidity; neem oil |
| Scale | Brown bumps | Scrape off; alcohol wipe |
| Fungus gnats | Tiny flies in soil | Let soil dry; sticky traps |
Quick Reference Table
| Factor | Requirement |
|---|---|
| Light | Low to bright indirect |
| Water | When top 1-2" dry |
| Humidity | 50%+ (loves humidity) |
| Temperature | 65-80°F |
| Soil | Rich, well-draining |
| Fertilizer | Every 6 weeks in growing season |
| Repotting | Every 1-2 years |
| Toxicity | Toxic to pets and humans |
| Propagation | Division only |
Conclusion
Peace lilies are elegant, air-purifying houseplants that reward you with beautiful white blooms even in low light. The key to success is consistent watering (they'll tell you when they're thirsty!) and providing adequate humidity.
With their glossy leaves and graceful spathes, peace lilies add sophistication to any room while working hard to clean your indoor air. Just remember to keep them away from pets and children!
Ready to learn more? Check out our Intermediate Guide for variety deep-dives, troubleshooting, and flowering tips.
関連トピック
このガイドをシェア
関連ガイド
関連するガイドで学び続けましょう
12 Best Plants for Small Apartments and Tiny Spaces
Discover the 12 best plants for small apartments that stay compact, look stunning, and thrive in limited space. Each pick includes maximum size, ideal placement, and a care card. From windowsill succulents to shelf-sized trailing vines, these plants prove you do not need a big home to have a beautiful indoor garden.
15 Best Pet-Safe Houseplants (ASPCA Verified Non-Toxic)
Discover the 15 best pet-safe houseplants that are verified non-toxic by the ASPCA. Each plant includes a care card, pet safety details, and what to do if your cat or dog nibbles on it. From the indestructible spider plant to the stunning calathea, you can fill your home with beautiful greenery without worrying about your furry friends. Plus: a list of the most common toxic plants to avoid.
12 Best Low Light Houseplants That Actually Thrive in Dark Rooms
Discover the 12 best low light houseplants that genuinely thrive in dim rooms, dark corners, and north-facing windows. Each pick includes a darkness tolerance rating, care card, and link to our full growing guide. From the nearly indestructible cast iron plant to the colorful Chinese evergreen, these plants do not just survive in low light — they look beautiful doing it.
15 Best Indoor Plants for Beginners (That Are Almost Impossible to Kill)
Discover the 15 best indoor plants for beginners that thrive on neglect and look amazing doing it. From the indestructible pothos to the sculptural snake plant, each pick includes a quick care card with light, water, and difficulty ratings plus links to full growing guides. Whether you have never owned a plant before or keep killing everything you buy, this list will help you find the perfect low-maintenance houseplant for your home, office, or apartment.