Peace lily (Spathiphyllum) is one of the most popular houseplants in the US, thriving in low light and producing elegant white spathes with minimal care.
Its genuine benefits include improving local humidity, reducing psychological stress, deterring mold growth in bathrooms, adding oxygen to enclosed spaces, and bringing measurable wellbeing improvements to the people living with it.
One widely repeated benefit, that it purifies indoor air of toxins, is based on a 1989 NASA study that has since been significantly revised by more recent research.
This guide covers all seven benefits honestly, including that one.
I want to be straightforward about something before listing the benefits. The peace lily is a genuinely excellent houseplant, and most of what you will read about it is accurate.
But one claim, the air purification claim, has been repeated so many times across so many websites that it has become accepted as settled fact, and the science behind it is considerably more complicated than most articles let on.
Giving you the full picture on that, rather than skipping past it, is what makes this guide worth reading over the dozens of others that say the same things.
With that said: the peace lily has real, meaningful benefits for the people who keep it, and if you do not already have one, this guide will make a convincing case for why you should.
Quick Guide: Peace Lily Benefits at a Glance
| Benefit | Real or Overstated? | Who Benefits Most |
| Increases local humidity | Real and measurable | Anyone in a dry home or climate; particularly useful in winter |
| Reduces psychological stress | Well-supported by multiple studies | Office workers, people working from home, anyone in a windowless space |
| Adds oxygen to the space | Real but modest | Everyone; more meaningful in small enclosed rooms |
| Helps deter bathroom mold | Real when placed correctly | Anyone in a high-humidity bathroom without adequate ventilation |
| Boosts mood and mental wellbeing | Well-supported | Everyone; particularly well-documented in healthcare and workplace settings |
| Easy low-light care for beginner growers | Real advantage | Anyone without a bright south or east-facing window |
| Removes VOCs from indoor air | Overstated; real in lab conditions but negligible in real homes | Honest answer: a healthy plant contributes something, but opening a window does far more |
Benefit 1: It Increases Local Humidity Genuinely and Measurably
The peace lily releases water vapour through its leaves via a process called transpiration.
As the plant draws water up from its roots and releases it through the leaf surface, it raises the humidity of the air immediately surrounding it.
This is real, measurable, and one of the peace lily’s most practical benefits for indoor environments.
In most US homes, indoor humidity drops significantly in winter when heating systems run continuously.
Forced-air heating in particular dries indoor air to levels that cause dry skin, chapped lips, irritated sinuses, and increased susceptibility to colds and respiratory infections.
The ideal indoor humidity for human comfort and health sits between 40 and 60 percent. Heating can push this below 30 percent in winter.
A peace lily placed in a bedroom or living room contributes a small but genuine humidity boost to the surrounding air.
The effect is most noticeable in smaller rooms where the plant has less air volume to humidify. I keep a peace lily on my desk through winter specifically for this reason.
The difference is not dramatic, but the air around the desk feels noticeably less harsh during the months when the heating runs all day.
| Tip: Maximise the Humidity Benefit The peace lily transpires most actively when it is healthy, well-watered, and receiving adequate indirect light. A stressed, underwatered, or dim-kept plant transpires at a much lower rate and provides less humidity benefit. Grouping several plants together compounds the effect. The humidity released by one plant benefits the others in the cluster and raises the collective local humidity more effectively than the same plants placed in separate rooms. |
At high ambient humidity, the peace lily’s transpiration rate decreases naturally because the air is already saturated.
This is sometimes described as the plant balancing humidity in both directions, absorbing it when high and releasing it when low.
In practice the regulation effect is gentle rather than dramatic, but it means a peace lily in a bathroom is not going to make an already-humid space dangerously wetter.
Benefit 2: It Is One of the Few Flowering Plants That Thrives in Low Light
This is a benefit that goes underappreciated in the listings. Most flowering houseplants need significant direct or bright indirect light to bloom.
Peace lily does not. It will flower in light conditions that would cause most other plants to drop their leaves and stop growing entirely.
Specifically, peace lily tolerates low to medium indirect light and will produce its characteristic white spathes in these conditions.
The spathes are modified leaves, technically called bracts, that surround the true flower, a pale yellow spadix at the centre.
They are not petals in the botanical sense but they look like elegant white blooms and they last for several weeks.
This matters practically because most homes have at least some rooms that do not receive adequate sunlight for typical flowering houseplants: north-facing rooms, interior offices, hallways, bathrooms without windows, and spaces shaded by surrounding buildings or trees.
Peace lily works in all of these places, which is one of the main reasons it has become one of the most sold and most gifted houseplants in the US.
| Tip: More Light Means More Flowers While peace lily tolerates low light, it performs better in medium indirect light, meaning within 5 to 8 feet of a window that does not receive direct sun. I n low light it will survive and remain green but flower rarely or not at all. If your peace lily has stopped blooming, the most common cause is insufficient light rather than any other care problem. |
Benefit 3: It Reduces Stress and Improves Psychological Wellbeing
Multiple studies across psychology, environmental science, and occupational health have found that the presence of plants in indoor environments measurably reduces self-reported stress, improves mood, and enhances concentration.
This is one of the most robust and best-replicated findings in indoor plant research, and it holds up considerably better under scrutiny than the air purification claim.
The mechanisms are not fully understood but several factors appear to contribute.
Visual contact with plants and natural forms activates the parasympathetic nervous system, reducing cortisol levels and lowering heart rate and blood pressure in measurable ways.
The colour green specifically has been associated with reduced psychological arousal across multiple studies.
Care activities like watering and tending plants provide a gentle, low-stakes form of nurturing that many people find calming.
Research published in the Journal of Physiological Anthropology found that interacting with indoor plants, including simple care tasks, reduced physiological and psychological stress compared to mental computer work.
A separate study in the Journal of Environmental Psychology found that employees in offices with plants reported significantly higher job satisfaction, concentration, and air quality perception than those in offices without plants, even when actual air quality was identical in both spaces.
| UK Reader Note: NHS-Supported Research on Plants and Wellbeing UK researchers at the University of Exeter produced some of the most cited evidence on the psychological benefits of indoor plants in workplace settings. Their work, conducted in partnership with organisations including the NHS, found that lean offices with no plants were associated with significantly lower wellbeing and productivity than offices with at least one plant visible from the employee’s desk. The RHS has incorporated green space and indoor plant guidance into its horticultural therapy programmes, which are used across multiple UK hospitals and care homes. |
The stress reduction benefit is genuinely meaningful. It does not require believing anything about air chemistry.
Plants in your line of sight, in spaces where you spend significant time, measurably improve how you feel. That is a benefit worth taking seriously on its own terms.
Benefit 4: It Helps Suppress Mold Growth in High-Humidity Spaces
This benefit is real but requires some nuance about where it applies and why.
Mold grows when ambient humidity stays consistently above 60 to 70 percent and ventilation is inadequate.
Bathrooms are the most common problem area in US homes. As we established in the humidity section, peace lily absorbs water through its roots and releases it through transpiration.
In a high-humidity environment, the plant’s transpiration rate slows because the surrounding air is already saturated, and the plant draws more moisture through the soil instead.
Placing a peace lily in a bathroom where humidity spikes after showers means the plant’s soil absorbs excess moisture from the air as humidity levels rise.
This modest moisture reduction, combined with the plant’s habit of drawing mold spores through its roots where they are broken down by soil microorganisms, contributes to a slightly less hospitable environment for mold growth on bathroom walls and ceilings.
This is not a substitute for proper ventilation. A bathroom without an exhaust fan or window will develop mold regardless of how many peace lilies you add, because the fundamental problem is excess moisture with nowhere to go.
But as a supporting measure in a bathroom that already has reasonable ventilation, a peace lily makes a genuine contribution.
| Warning: Peace Lily Needs Drainage in the Bathroom A common mistake is setting a peace lily in a bathroom without a drainage hole or saucer, assuming the high ambient humidity will water it naturally. It will not. The plant still needs regular soil watering and a draining pot. Bathroom humidity supplements the soil moisture but does not replace watering. A peace lily sitting in stagnant water in a saucer in a humid bathroom is at high risk of root rot, which will kill it faster than almost any other care error. |
Benefit 5: It Contributes to Oxygen Levels Through Photosynthesis
All green plants produce oxygen as a byproduct of photosynthesis, converting carbon dioxide from the air into glucose using light energy.
Peace lily does this just like any other plant, and it is a genuine benefit for indoor air in the basic sense that any living plant contributes to the oxygen supply of the room it occupies.
The practical significance of this in a well-ventilated home is modest. A typical US home has enough air exchange through doors, windows, HVAC systems, and building gaps that a single plant’s oxygen contribution is not going to measurably change the air composition in a 200 square foot room.
However, in smaller, more enclosed spaces with less ventilation, the contribution becomes more meaningful.
A study bedroom, a home office kept closed through winter, or a basement room with limited airflow will benefit more noticeably from a large, actively photosynthesising plant than a well-ventilated living room will.
Peace lily is also one of the few houseplants that continues some level of photosynthesis in low light, which means it is producing oxygen in rooms where most other plants would slow or stop.
This is a meaningful advantage in spaces that are naturally dark.
| Tip: Healthy Leaves Are the Oxygen Factory The surface area of healthy, clean leaves determines how much photosynthesis a plant can perform. Peace lily leaves accumulate dust over time, which blocks light reaching the leaf surface and reduces photosynthetic efficiency. Wiping leaves gently with a damp cloth every few weeks keeps them clean and working at full capacity. This is one of the simplest and most overlooked care tasks for indoor peace lilies. |
Benefit 6: It Is Genuinely Low-Maintenance and Forgiving for Beginner Growers
The ease-of-care benefit is one that most articles mention briefly but that deserves more emphasis, because it is what makes peace lily’s other benefits actually accessible to most people.
A plant that is difficult to keep alive delivers none of its potential benefits to someone who kills it within three months.
Peace lily communicates its water needs more clearly than almost any other common houseplant. When it needs water, the leaves droop visibly.
When you water it, the leaves recover fully within a few hours.
This visible feedback loop means beginner growers can learn when to water by watching the plant rather than following a fixed schedule that may not match their specific conditions.
I have recommended peace lily to more people who describe themselves as killing every plant they try than any other species, and the feedback is almost universally positive.
It tolerates the temperature range of most US homes without complaint, anywhere from 65 to 85 degrees F. It does not need direct sunlight.
It does not need a complex fertilizing schedule. It flowers reliably in low-light conditions that defeat other flowering plants.
Its only significant care requirement is that it must have a pot with drainage holes and should not sit in standing water, because root rot from overwatering is its primary cause of death and it is preventable with proper setup.
| Tip: Water When the Leaves Just Begin to Droop The most reliable watering indicator for peace lily is to wait until the leaves begin to droop very slightly, a gentle wilting rather than a full collapse, and water at that point. This approach prevents both overwatering and chronic underwatering simultaneously. Do not wait for a full dramatic droop before watering. A peace lily that has been dramatically wilted repeatedly will eventually develop root stress and begin producing fewer flowers. The slight droop is the signal, not the emergency. |
One care note that most benefit articles skip: peace lily is sensitive to fluoride in tap water over time.
The accumulation of fluoride in the soil causes brown leaf tips that look like underwatering but do not respond to watering.
If your tap water is heavily fluoridated and your peace lily has persistent brown tips despite adequate moisture, switching to filtered water or allowing tap water to sit out overnight before using it typically resolves the problem within a few weeks.
Benefit 7: The Air Purification Benefit, Honestly Explained
This is the claim you will see on almost every peace lily article, usually stated as fact with reference to NASA.
It deserves a more complete explanation than it typically gets, because the research behind it has developed significantly since 1989 and most current guides have not updated their coverage accordingly.
What the NASA Study Actually Found
In 1989, NASA researchers placed houseplants including peace lily in small, sealed glass chambers and measured how much they reduced concentrations of volatile organic compounds (VOCs) including benzene, formaldehyde, and trichloroethylene.
Peace lily performed well in these tests. It removed 23 percent of trichloroethylene from chamber air in 24 hours, the highest of any plant tested.
The researchers concluded that houseplants showed promise as a way to improve air quality in sealed environments, specifically space stations.
This is where many plant guides stop. But the study’s own authors were careful to note that their findings applied to sealed chambers with no ventilation and pollutant concentrations far higher than those typically found in homes.
They were investigating whether plants could help clean the air in a spacecraft, not whether they could meaningfully improve air quality in an apartment with windows, HVAC systems, and natural air movement.
What Subsequent Research Found
A 2019 review by Cummings and Waring, published in the Journal of Exposure Science and Environmental Epidemiology, analysed the full body of research on indoor plants and air quality and reached a sobering conclusion.
In real-world indoor environments with typical ventilation rates of 0.5 to 1.0 air changes per hour, natural air exchange removes VOCs from indoor air at a rate that would require 10 to 1,000 plants per square metre of floor space to match.
A single peace lily in a 200 square foot bedroom is not operating anywhere near that density.
The clean air delivery rate (CADR) of a single houseplant is approximately 0.02 to 0.04 cubic metres per hour.
A standard HEPA air purifier delivers 100 to 400 cubic metres per hour. Simply opening a window for 15 minutes moves more air than a peace lily can process in days.
Iowa State University Extension concluded plainly that houseplants have little effect on air quality in the home or office because the highly controlled testing environment of the NASA study does not translate to real-world conditions.
| Warning: The Air Purification Claim Is Widely Overstated Most peace lily guides present the NASA findings as proof that peace lily meaningfully purifies your home’s air. This is a significant overstatement of what the research actually shows in real-world conditions. If indoor air quality is a health concern for you or your family, the most effective measures are: opening windows regularly to increase air exchange, addressing the sources of pollutants such as choosing low-VOC paints and finishes, running a HEPA air purifier, and ensuring adequate ventilation particularly in bathrooms and kitchens. Peace lily does contribute something at the level of individual leaf absorption and root-zone microbial activity. But this contribution is too small to make a meaningful difference in a normally ventilated home, and presenting it as a significant health benefit is misleading. |
What Peace Lily Still Genuinely Does for Air
Despite the limitations of the air purification claim in real-world conditions, peace lily does provide a few genuine air-related benefits that are often conflated with the VOC removal claim but are actually distinct and more measurable.
It increases local humidity through transpiration, as covered in Benefit 1. It produces oxygen through photosynthesis, as covered in Benefit 5.
It may absorb a small number of airborne mold spores through its root zone, which soil microorganisms then break down.
And a 2004 study found that the microorganisms in the soil of potted plants remove benzene from air independently of the plant itself, suggesting the soil ecosystem of any healthy potted plant has some chemical activity regardless of the species.
These are real contributions. They are just considerably more modest than the air purification marketing suggests, and they are not why you should buy a peace lily.
You should buy a peace lily because it is beautiful, easy to care for, tolerates low light, reduces stress, and contributes meaningfully to local humidity. Those benefits are solid.
| UK Reader Note: VOCs in UK Homes UK homes face similar VOC sources to US homes: off-gassing from new furniture, paints, flooring, cleaning products, and cooking. The UK Health Security Agency recommends ventilation as the primary strategy for managing indoor VOC levels, specifically cross-ventilation by opening windows on opposite sides of the home. The RHS does not promote houseplants as air purifiers in its official guidance, instead focusing on their wellbeing and aesthetic benefits. |
Where to Place a Peace Lily for Maximum Benefit
Getting the placement right is what determines whether you actually experience the benefits described above.
Bedrooms are excellent locations. A peace lily in a bedroom contributes to humidity during winter, produces oxygen while you sleep, and research supports the idea that visual exposure to plants in sleeping spaces is associated with better sleep quality and lower stress on waking.
The low-light tolerance means it works in bedrooms that do not receive morning sun.
Bathrooms are genuinely well-suited locations, provided there is at least some indirect light from a window or skylight and the plant receives regular watering.
The bathroom benefit is primarily about mold deterrence, which is most relevant if you have experienced recurring mold problems on walls or ceiling tiles.
Home offices and desks are where the psychological wellbeing benefits are most strongly supported by research.
A plant in your direct line of sight during working hours reduces stress, improves mood, and is associated with higher self-reported concentration.
A peace lily specifically works well here because it does not require a window nearby and its leaf transpiration gently raises the local humidity around your face and hands.
Avoid direct sunlight from south or west-facing windows. Direct sun scorches peace lily leaves within days, turning them yellow or brown from the tip inward.
If your most convenient spot gets afternoon direct sun, move the plant back from the window or filter the light with a sheer curtain.
| Room | Benefit Accessed | Light Requirement | Care Note |
| Bedroom | Humidity boost, oxygen, stress reduction, sleep quality | Low to medium indirect | Keep off windowsills with direct morning sun |
| Bathroom | Mold deterrence, humidity regulation | Low indirect; at least some natural light | Must still be watered regularly; humidity does not replace watering |
| Home office or desk | Stress reduction, mood, concentration | Low to medium indirect; grows under fluorescent light | Position in line of sight for maximum psychological benefit |
| Living room | Aesthetic appeal, humidity, oxygen | Medium indirect | Larger varieties like Sensation suit larger living rooms |
| Hallway | Aesthetic, low-light adaptability | Low; tolerates very low light | Will not flower in very deep shade; primarily foliage benefit |
| Kitchen | Humidity, mold deterrence near sink area | Medium indirect away from direct heat | Keep away from cooker heat and cold draughts from outside doors |
Peace Lily Toxicity: The Warning Every Guide Needs to Include
| Warning: Peace Lily Is Toxic to Cats, Dogs, and Humans Peace lily (Spathiphyllum) is listed by the ASPCA as toxic to cats and dogs. All parts of the plant contain calcium oxalate crystals, which cause intense burning and irritation in the mouth and throat, excessive drooling, difficulty swallowing, and vomiting if chewed or ingested. In humans, the same calcium oxalate crystals cause contact dermatitis and oral irritation. The plant is not fatally poisonous in the way that some garden plants are, but ingestion causes significant discomfort and in pets can cause enough distress to require veterinary attention. If you have cats or dogs that chew houseplants, keep peace lily completely out of their reach or choose a non-toxic alternative such as spider plant, Boston fern, or bamboo palm. If you have young children who might pick up fallen leaves, the same caution applies. If a pet ingests peace lily, contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately rather than waiting to see if symptoms develop. |
Peace Lily Varieties Worth Knowing About
Most people buy whatever peace lily is available at their local garden centre without knowing that the plant varies significantly in size across its cultivars.
Choosing the right size for your space makes a practical difference to both the care requirements and the benefit you get.
| Variety | Mature Size | Best Placement | Notes |
| Spathiphyllum wallisii (common peace lily) | 12 to 18 inches tall | Desks, shelves, small rooms | Most commonly sold; compact and easy to manage |
| Spathiphyllum ‘Petite’ | 8 to 10 inches tall | Windowsills, bathroom shelves | Smallest widely available variety; suited to very tight spaces |
| Spathiphyllum ‘Sensation’ | Up to 6 feet tall | Large living rooms, lobbies, open plan spaces | Dramatic specimen plant; needs space and larger pot |
| Spathiphyllum ‘Domino’ | 18 to 24 inches tall | Living rooms, offices | Variegated leaves with white streaks; same care as standard |
| Spathiphyllum ‘Mauna Loa Supreme’ | 24 to 36 inches tall | Living rooms, hallways | The variety used in the original NASA study; widely available |
Frequently Asked Questions
Does a peace lily actually purify air?
It performs measurably in laboratory conditions, where the 1989 NASA study found it removed 23 percent of trichloroethylene from sealed chamber air in 24 hours.
In a real home with normal ventilation, the effect is negligible. The 2019 Cummings and Waring review found you would need 10 to 1,000 plants per square metre of floor space to match the air cleaning effect of natural ventilation.
A peace lily contributes something, but the contribution is too small to make a meaningful difference to your home’s air quality compared to simply opening a window.
Is peace lily safe for pets?
No. Peace lily is toxic to cats, dogs, and horses according to the ASPCA, and causes mouth and throat irritation in humans as well.
All parts of the plant contain calcium oxalate crystals that cause intense burning and irritation if chewed or ingested.
If you have pets that chew plants, keep peace lily completely out of their reach or replace it with a non-toxic alternative.
Contact your vet immediately if you suspect your pet has ingested any part of the plant.
Does peace lily really increase humidity?
Yes, through a process called transpiration where the plant releases water vapour through its leaves.
The effect is genuine but modest: most useful in a small room during winter heating season when indoor humidity drops.
In a large, well-ventilated room the contribution is too small to measure meaningfully.
In a small bedroom or bathroom, particularly in combination with other plants, the effect is more noticeable.
Where should I put a peace lily in my bedroom?
Away from direct sunlight and at least 3 to 5 feet from any window that receives direct afternoon sun.
A spot that receives bright indirect light, such as a corner of the room that gets reflected daylight without direct rays, is ideal.
Keep it away from air conditioning and heating vents, which cause temperature fluctuations and dry the air around the leaves.
On a bedside table or dresser within your line of sight maximises the psychological wellbeing benefits during waking hours.
Why has my peace lily stopped flowering?
The most common cause is insufficient light. Peace lily produces its white spathes reliably in medium indirect light but rarely or not at all in deep shade.
Move it closer to a window or to a brighter room and flowers will typically appear within 6 to 8 weeks during the growing season.
Other causes include nutrient depletion in old potting mix (repot every 1 to 2 years in fresh mix), root crowding in too-small a pot, and stress from temperature extremes or fluoride accumulation in the soil.
How often does peace lily need watering?
When the leaves begin to droop very slightly, rather than on any fixed schedule. The drooping is the plant’s built-in watering signal and it is reliable.
Water thoroughly until water drains from the drainage holes, then do not water again until you see the slight droop.
In most home conditions this works out to approximately every 7 to 10 days in summer and every 14 days in winter, but these are rough averages that vary significantly with pot size, soil composition, light levels, and room temperature.
Can peace lily grow in a bathroom with no natural light?
It will survive in very low light but will not flower and will not thrive. A windowless bathroom with only artificial light is below peace lily’s minimum threshold for active growth and photosynthesis.
If the artificial light is on for at least 12 to 14 hours daily, as it often is in a regularly used bathroom, peace lily will manage but will grow very slowly and will not bloom.
A full-spectrum LED light positioned close to the plant can supplement adequately if natural light is unavailable.
Is peace lily good for sleep?
There is reasonable evidence that having plants in a bedroom environment reduces stress and is associated with improved sleep quality perceptions.
Peace lily specifically contributes a gentle humidity boost to the surrounding air, which reduces the dry throat and nasal irritation that many people experience in heated winter bedrooms.
It also produces oxygen continuously through photosynthesis.
The air purification effect on VOCs is too small to be meaningful. Overall, a peace lily in a bedroom is a positive presence for most people, though the benefits are gentle rather than dramatic.
Key Takeaways
- Peace lily is one of the best flowering houseplants for low-light conditions. It produces white spathes in spaces that defeat other flowering plants and works in north-facing rooms, interior offices, and windowless bathrooms with some artificial light.
- It genuinely increases local humidity through transpiration. The benefit is most meaningful in small rooms during winter heating season when indoor humidity drops below comfortable levels.
- The psychological wellbeing benefits are among the best-supported in indoor plant research. A plant in your line of sight during working or waking hours reduces stress, improves mood, and is associated with better concentration.
- It helps suppress mold in bathrooms as a supporting measure, not a primary solution. Proper ventilation is still essential. The plant contributes by absorbing soil moisture and housing mold-spore-breaking microorganisms in its root zone.
- The air purification benefit is significantly overstated in most guides. The 1989 NASA study was conducted in sealed chambers with no ventilation, and subsequent research has found that a single plant’s contribution to real-world indoor air quality is negligible. Opening a window is vastly more effective.
- Peace lily is genuinely easy to care for and communicates its water needs visibly by drooping slightly. This makes it one of the most forgiving plants for beginners. Its main killer is overwatering combined with poor drainage, which is entirely preventable.
- Peace lily is toxic to cats, dogs, and humans. All parts of the plant contain calcium oxalate crystals that cause mouth and throat irritation if chewed. Keep it away from pets that chew plants and young children.
- Fluoride in tap water causes brown leaf tips that look like underwatering symptoms but do not respond to more water. Switch to filtered or overnight-rested tap water if your peace lily has persistent tip browning despite adequate soil moisture.
- For best results, place in medium indirect light, water when leaves droop slightly, repot every 1 to 2 years in fresh well-draining mix, and wipe leaves with a damp cloth every few weeks to keep photosynthesis working at full efficiency.
- The right variety for your space matters. Standard wallisii and Petite suit desks and shelves. Mauna Loa Supreme and Sensation are for larger rooms where a dramatic statement plant is appropriate.
Final Thoughts
The peace lily earns its place as one of the most popular houseplants in the US for reasons that hold up under scrutiny.
It flowers where other plants will not, it is genuinely forgiving for beginners, it adds measurable humidity to dry winter interiors, and a growing body of research supports the idea that living with plants makes people demonstrably less stressed and more content. That is a meaningful list.
The air purification story is more complicated than most guides acknowledge, and I think growers deserve to know that.
Not because it undermines the peace lily as a plant, but because making decisions based on accurate information is always better than making them based on a 35-year-old study that was never designed to answer the question it has been used to answer ever since.
Buy a peace lily because it is beautiful, easy to keep, useful in spaces where little else grows, and genuinely good for the people living with it. Those are more than enough reasons.
| What’s Next If you do not already have a peace lily, the most common starting size is a 6-inch pot from a garden centre or grocery store. Place it in medium indirect light away from direct sun, in a pot with drainage holes, and water it when the leaves begin to droop slightly. From there, the plant will tell you what it needs. If you want to explore the full range of what peace lily can do for different rooms in your home, start with one plant in the room where you spend the most time during the day. The psychological wellbeing benefits are most noticeable in spaces where you are present for extended periods, and that is where you will notice the difference most quickly. |
Hi, I'm Matt,
An amateur gardener with a houseplant habit that got slightly out of hand.
I started Bean Growing to share what I've learned from a few years of trial, error, and the occasional dead plant.
I grow a mix of houseplants and outdoor shrubs in the UK but try to expand my knowledge to the US. I try to write about what actually works