Indoor Plants for Mental Health: What Research Shows and Where to Start

Houseplants can help your mood, but in a modest way.

Small studies link indoor plants for mental health to calmer feelings, lower stress after mental work, and a sense of comfort at home, so a few easy plants are a reasonable, low-cost addition to your mental wellness habits.

They aren’t a cure for anxiety or depression, and the research behind them is small. My advice is to start with one or two forgiving plants, put them where you’ll see them every day, and treat the care as a pleasant routine.

Can Houseplants Help Your Mental Health?

Yes, houseplants can help a little, mostly with everyday stress and mood. Studies show people feel more relaxed around living greenery and after short plant-care tasks, but the effects are small and short-term, and they don’t replace care for a mental health condition.

What Benefits Are Reasonable to Expect?

The most consistent finding is that people report feeling calmer and happier when real plants are nearby. A large review of indoor plant studies found the strongest effect was on self-reported happiness and comfort.

In one well-known Korean study, adults who repotted a plant felt more comfortable and relaxed than when they did computer work. Their blood pressure and nervous system signals also shifted toward a calmer state.

Here’s what I think you can fairly expect from plants for mental health:

• A room that feels softer and more pleasant to be in
• Small moments of calm when you water, mist, or look at a plant
• A gentle daily task that gets you up and moving
• Some help with emotional well-being during long indoor stretches, like winter

Appearance plays a role too. One study found people rated lush, healthy, rounded-leaf plants like pothos as the most calming, and they rated sickly plants negatively.

Why Plants Aren’t a Treatment for Anxiety or Depression

Anxiety and depression are medical conditions. They respond to proven care such as therapy, medication, or both, chosen with a professional.

The plant studies are mostly small, short, and done in labs or offices. Many measure how people feel for a few minutes, and few follow people over months. That makes plants a nice support for stress reduction, and nothing more than that.

If a plant brightens your day, that’s a good thing. If your low mood or worry sticks around, a plant can sit next to real help, never in place of it.

What Does the Research Say About Plants and Stress?

The research points to small, real drops in stress and a bit of mental recovery when people see or tend plants. It also shows that popular claims about plants cleaning your home’s air don’t hold up in a normal house.

Stress Responses and Attention Restoration

The biophilia hypothesis is the idea that people have a built-in pull toward nature. It’s a theory, but it helps explain why green leaves feel restful to many of us.

Attention restoration theory adds another piece. Hard focus on screens and tasks tires your attention, and looking at natural things lets it recover without effort.

A Japanese study of office workers tested this with a small plant on each desk. When workers felt tired and looked at their plant, their pulse rate dropped and their reported anxiety eased slightly.

What Horticultural Therapy Studies Can and Can’t Tell Us

Horticultural therapy is a guided program where a trained therapist uses gardening tasks to help people reach specific goals. It’s been used in hospitals, rehab centers, and psychiatric units.

Patients in these programs often describe touching leaves and smelling plants as calming. Those programs include a trained leader, a group, and a set plan, though, so the results don’t transfer neatly to a pothos on your bookshelf.

A scoping review of studies on indoor plants and mental health also flagged a gap. Most research is short-term, and large, long studies in real homes are still rare.

Why Air-Cleaning Claims Don’t Apply to Most Homes

The famous 1989 NASA study tested plants in small sealed chambers, which are very different from a house with doors, vents, and drafts. A 2019 review by Cummings and Waring estimated you’d need 10 to 1,000 plants per square meter to match normal building ventilation.

So “air-purifying plants” won’t meaningfully change your indoor air quality. A houseplant also makes only a tiny amount of oxygen compared with what one person breathes.

If you want to read more on that topic, I cover it in my guide to indoor air purifier plants. For cleaner air, opening windows, running bathroom and kitchen fans, and cutting down on harsh chemicals work far better.

Why Can Caring for a Plant Feel Calming?

Plant care gives you a small, steady routine with visible results, and that combination feels steadying. It also pulls your attention into the present for a few minutes at a time.

A Manageable Routine and Small Signs of Progress

A new leaf unrolling or a vine growing an inch is proof that your care worked. Those small wins add up, especially on days when bigger goals feel out of reach.

A mixed-method study of students found that tending one indoor plant for a month helped them feel less stuck in repetitive, worried thinking. The students described the plant as something to look after and look forward to.

I like indoor gardening as a routine because it scales to your energy. On a good day you can repot or prune. On a hard day, checking the soil with one finger still counts.

Grounding Your Attention During Everyday Care

Grounding means bringing your focus back to what’s in front of you. Plant care does this naturally because it asks you to look and touch.

Try slowing down during your next check-in:

1. Press a finger into the soil and notice whether it’s cool, damp, or dry.
2. Run your hand along one leaf and feel its texture.
3. Look for one new thing, like a bud, a root at the drainage hole, or a fresh leaf.
4. Breathe in slowly if the plant has a scent.

That takes two minutes, and the indoor greenery gives your mind a quiet job while you do it.

Four Easy Houseplants for a Low-Pressure Start

The best indoor plants for mental health, in my opinion, are the ones that are hard to kill, since a struggling plant adds worry. Pothos, snake plant, spider plant, and peace lily all handle normal home conditions and forgive missed waterings.

Plant	Light	Water	Why I like it
Pothos	Low to bright indirect	When top 1 to 2 inches dry	Fast, visible growth
Snake plant	Low to bright	Every 2 to 6 weeks	Very drought tolerant
Spider plant	Bright indirect	When top inch dries	Bounces back, makes babies
Peace lily	Low to medium	When it starts to droop	Clear thirst signal, blooms

For more choices, see my list of easy indoor plants for beginners.

Pothos for Visible Growth

Pothos is my top pick if you want to see progress. In bright indirect light, vines can grow several inches a month in spring and summer.

It tolerates low light, though growth slows and variegation fades. Water when the top 1 to 2 inches of soil feel dry, and snip long vines to root in a glass of water, which is a satisfying little project.

Snake Plant for Infrequent Watering

Snake plant suits anyone who forgets to water. It stores water in its thick leaves and only needs a drink every 2 to 6 weeks, depending on light and season.

It’s a CAM plant, so it opens its pores at night to save water. Overwatering is the main way people lose one, so let the soil dry almost completely and use a pot with a drainage hole.

Spider Plant for Forgiving Care

Spider plant handles a wide range of conditions and recovers quickly from mistakes. Brown tips are common and mostly cosmetic, often caused by dry air or salts in tap water.

A happy plant sends out arching stems with baby plantlets. You can pot those up and share them, which turns your plant into a small gift for someone else.

Peace Lily for Blooms and Clear Watering Cues

Peace lily (Spathiphyllum) tells you when it’s thirsty by drooping, then perks up within hours of watering. That clear signal takes the guesswork out of care.

It blooms with white hooded flowers in medium indirect light and tolerates lower light with fewer blooms. Water when it begins to sag, and wipe the broad leaves with a damp cloth now and then.

Which Plants Offer Scent or Texture to Enjoy?

Fragrant herbs and textured leaves give you something to smell and touch, which makes plant care more engaging. Most scented plants need a sunny window indoors, while textured foliage plants handle less light.

Lavender and Jasmine Need a Sunny Spot

Lavender is the plant people most often name among plants for anxiety, and its scent is widely used in aromatherapy. Indoors it’s tough to grow, though, because it needs 6 or more hours of direct sun and soil that dries fast.

Give lavender your sunniest south or west window and water only when the soil is dry an inch down. Many gardeners grow it outside in summer and enjoy cut stems indoors, which is often easier.

Jasmine also wants bright light, ideally a few hours of direct sun. Winter-blooming pink jasmine (Jasminum polyanthum) needs cool nights around 50°F to 60°F in fall to set buds.

Rosemary, Basil, and Lemon Balm Add Familiar Scents

Kitchen herbs give you a calming scent and something useful. Brushing your hand across rosemary or lemon balm releases the oils right away.

• Rosemary: Needs direct sun and good airflow. Let soil dry slightly between waterings, and watch for powdery mildew in stuffy rooms.
• Basil: Wants 6 to 8 hours of sun or a grow light, warm temps above 60°F, and even moisture. Pinch tips to keep it bushy.
• Lemon balm: More shade tolerant than the others and a member of the mint family. Keep it evenly moist and trim often.

For a list of sun lovers, see my guide to indoor plants that like direct sunlight.

Boston Fern, Orchids, and Anthuriums Offer Different Textures

Boston fern has soft, feathery fronds that feel lovely to touch. It needs bright indirect light, steady moisture, and humidity, so it does well in a bathroom with a window.

Moth orchids have smooth, thick leaves and long-lasting blooms. Water about once a week by soaking the bark, then draining it well.

Anthuriums offer glossy, waxy flowers that look almost plastic. They like bright indirect light and soil that dries slightly between waterings.

What Works on a Desk or in a Small Room?

Small indoor plants for mental health fit on a windowsill or desk and still give you something green to rest your eyes on. Match the plant to your light first, then pick a size and shape that fits your space.

Compact Plants for Sunny Windowsills

Sunny sills suit plants that store water. These stay small and need little care:

• Aloe vera: Water every 2 to 3 weeks; it needs bright light or it stretches and flops.
• Succulents like echeveria and haworthia: Gritty soil and a sunny sill; haworthia tolerates a bit less sun.
• Jade plant: Grows slowly into a tiny tree; let the soil dry fully between waterings.
• Chinese money plant: Round, coin-shaped leaves on a compact stem; likes bright indirect light.

Low-Light Choices for Desks and Shelves

Office desks and shelves away from windows need plants that handle low light. ZZ plant is my favorite here, since it tolerates fluorescent light and goes weeks without water.

Heartleaf philodendron also does well in low light and grows slowly enough to stay tidy on a shelf. A pothos in a small pot works too.

You’ll find more ideas in my lists of indoor plants that don’t need sun and best indoor office plants.

Trailing and Upright Options That Save Surface Space

Trailing plants on a high shelf or hanging hook leave your desk clear. Pothos and heartleaf philodendron both drape nicely from a bookshelf.

Upright plants use floor space instead of tabletop space. A rubber plant grows into a tall, glossy-leaved tree in bright indirect light, and a bamboo palm softens a dim corner and handles lower light.

How Do You Set Up a Calming Plant Corner?

A good plant corner starts with the right light, then puts plants where you’ll notice them while you relax. Even two or three plants near a favorite chair create a restful spot.

Match Each Plant to the Window Light

Light decides which plants thrive, so check your windows before you shop.

• Direct sun: A south or west window with sun on the sill. Good for herbs, succulents, aloe, and jade.
• Bright indirect: Near a window but out of the sun’s rays. Good for pothos, spider plant, rubber plant, and Boston fern.
• Low light: A north window or deep in a room. Good for ZZ plant, snake plant, and peace lily.

A simple test helps. If you can read comfortably at midday without a lamp, there’s enough light for most low-light plants.

Group Plants Where You’ll See Them Without Crowding Them

Place your plants within view of where you sit, read, or work. The office and school studies that found benefits kept plants in plain sight.

Grouping plants raises humidity around them a bit, which ferns and peace lilies enjoy. Leave a few inches between pots for airflow, since packed leaves stay damp and invite mildew and pests.

Mixing heights adds interest. Try one tall floor plant, one medium plant on a stool, and a trailing plant on a shelf above.

How Do You Keep Plant Care from Adding Stress?

Keep plant care calming by starting small, watering by touch, and adjusting with the seasons. Most plant problems trace back to too much water or the wrong light, and both are easy to fix.

Start Small and Let Go of Perfect-Looking Plants

Buying a dozen plants at once turns a hobby into a chore list. I suggest starting with one or two and adding more once those feel easy.

Every plant drops old leaves and gets brown tips sometimes. A yellow lower leaf on a pothos is normal aging, so trim it off and move on.

Check Soil Before Watering and Make Troubleshooting Simple

Water by checking the soil, never by the calendar. Push a finger 1 to 2 inches deep, and water only if it feels dry for most foliage plants.

Fungus gnats are the most common indoor pest, and their larvae live in the top 1 to 2 inches of damp soil.

Let that layer dry between waterings, use yellow sticky traps for adults, and add BTI (sold as mosquito bits) to your watering can to kill the larvae. My guide to bugs in houseplant soil covers more.

For other pests, test insecticidal soap or neem oil on a few leaves first, spray leaf undersides, and repeat every 5 to 7 days for 2 to 3 weeks. Dab mealybugs with 70% rubbing alcohol on a cotton swab.

If a plant keeps declining, my checklist on why your houseplant is dying walks through the usual causes.

Adjust Your Routine as Light Changes Through the Year

Plants slow down in winter, so they need less water and food. Feed in spring and summer with liquid fertilizer at half strength every 2 to 4 weeks, and give little or none from late fall to late winter.

Winter sun is weaker, especially in the Northeast, Midwest, and Pacific Northwest. Move plants closer to windows from November to February, and keep them away from heating vents, since hot, dry air invites spider mites.

Flush pots with plain water every few months to clear out fertilizer salts. In summer, you can move plants outside once nights stay above 55°F, starting in full shade for a week.

Which Houseplants Are Safer Around Cats and Dogs?

Spider plant, Boston fern, and bamboo palm are all non-toxic to cats and dogs, according to the ASPCA. Several popular easy plants are toxic, so check before you buy if you have pets.

Pet-Safer Choices and Plants to Keep Out of Reach

The ASPCA lists these as non-toxic:

• Spider plant
• Boston fern
• Bamboo palm
• Moth orchid
• Chinese money plant

The ASPCA lists these as toxic, so keep them up high or skip them:

• Pothos
• Snake plant
• Peace lily
• English ivy (Hedera helix)
• Jade plant
• Rubber plant

Even safe plants can cause mild stomach upset if a pet chews a lot of leaves. My list of cat-friendly indoor plants has more options, and the ASPCA Poison Control line is (888) 426-4435.

Why a Peace Lily Isn’t a True Lily

Peace lily belongs to a different plant family from true lilies. It contains calcium oxalate crystals that irritate the mouth, causing drooling, pawing, and vomiting in pets.

True lilies (Lilium) and daylilies (Hemerocallis) are far more dangerous. Per the ASPCA, they can cause kidney failure in cats, even from a small bite or pollen.

Keep cut lilies out of any home with cats, and call a vet right away if your cat touches one.

When Is It Time to Reach Out for More Support?

Reach out for help if low mood, worry, or trouble sleeping lasts more than two weeks or makes daily life hard. Plants can support your mental wellness, and a professional can treat anxiety and depression.

Talk with a Professional About Persistent Symptoms

Your primary care doctor is a good first stop. They can check for physical causes and refer you to a therapist or psychiatrist.

Signs it’s time to make that call include:

• Feeling sad, empty, or hopeless most days
• Losing interest in things you used to enjoy
• Constant worry that’s hard to control
• Changes in sleep, appetite, or energy
• Trouble getting through work or home tasks

Keep your plants in your routine while you get care. They’re a fine companion to treatment.

Use the 988 Suicide & Crisis Lifeline for Immediate Support

If you’re thinking about suicide or are in emotional distress, call or text 988 to reach the 988 Suicide & Crisis Lifeline. It’s free, confidential, and open 24 hours a day across the US.

You can also chat online at 988lifeline.org. If you’re in immediate danger, call 911.

Frequently Asked Questions