Reads the spot, not the room.

Plant placement, spot by spot

Plants don’t live in rooms. They live in spots. These guides sort out what actually grows where: by window, by spot, by light situation, plus how to read the light at any spot yourself.

Start here

By window direction

North, south, east and west, and what each one actually gives you.4

By plant and window

One plant, one window, one answer, with the distance that decides it.80
By plant

Snake plant in a west window

Ideal, lethal, or ten feet back? The answer is a distance.

By plant

Monstera in a north window

Best window or nowhere near enough? Both, one metre apart.

By plant

Pothos in an east window

Everyone agrees it works. Nobody says how far it reaches.

By plant

Monstera in an east window

Seven feet: thriving, or far too far? One of them is wrong.

By plant

Fiddle leaf fig in a south window

The scorch warnings point at the wrong end of the room.

By plant

Philodendron in a south window

Four guides, four distances. Ours is two and a half metres.

By plant

Peace lily in a south window

“Avoid south windows” is useless if south is all you have.

By plant

Spider plant in a west window

The argument is about light. Heat is the actual limit.

By plant

ZZ plant in a north window

A full score on the sill, and no, not in a closet.

By plant

Rubber plant in an east window

Every guide says “near.” It has to mean near.

By plant

Prayer plant in an east window

Nine guides about the window. None about the air.

By plant

Orchid in a south window

One society says best window. The summary says never. Both, two metres apart.

By plant

Monstera in a south window

The advice is a range. The data is a step, drawn at the glass.

By plant

Monstera in a west window

Two to six feet back does nothing for the light. The heat is another matter.

By plant

Snake plant in a south window

Every distance anyone recommends is short of the one that scores.

By plant

Peace lily in a west window

Three to five feet is the number everyone gives. It is a metre short.

By plant

Jade plant in a north window

The sill and the far wall are one point apart. There is no spot.

By plant

Jade plant in a south window

Yes, and three metres in you are back at a north window.

By plant

Rubber plant in a west window

Three claims about this window. One of them aims the wrong way.

By plant

Golden pothos in a west window

Four contradictory answers, and every one of them works.

By plant

Fiddle leaf fig in a north window

Identical light to the monstera page. Opposite verdict.

By plant

Parlor palm in an east window

The spot everyone recommends is the one that gets flagged.

By plant

Philodendron in a west window

Several feet back, or five? One of them clears the flag.

By plant

Orchid in an east window

Every guide agrees on the window. None mentions the air.

By plant

ZZ plant in an east window

Two to six feet back, says the advice. Only the first two feet matter.

By plant

Prayer plant in a north window

Every guide likes the window. The light runs out a metre and a half in.

By plant

Snake plant in an east window

One guide files three to ten feet back as low light. It is the best spot in the room.

By plant

Peace lily in an east window

A few feet back is still flagged. Five feet clears it, most of the year.

By plant

Snake plant in a north window

Thriving or just surviving? The answer is the season, and the cold glass.

By plant

Pothos in a south window

In the window, or eight feet back? The step is at two and a half metres.

By plant

Fiddle leaf fig in a west window

Pull it back from the afternoon sun? A metre back costs a band of light.

By plant

Pothos in a north window

Nobody says pull it back. The only reason to is a cold winter sill.

By plant

Spider plant in a north window

Everyone says it can sit in the window. Nobody says how far back it can go.

By plant

Peace lily in a north window

Ideal or only in a pinch? On the sill, the cold matters more than the light.

By plant

Jade plant in an east window

Year-round, says the advice. The sill holds from March to September.

By plant

Fiddle leaf fig in an east window

East or south? The real limit is a strip two feet deep.

By plant

Spider plant in a south window

Bad news or fine on the sill? Three feet back settles it.

By plant

Rubber plant in a south window

The guides pull it back from the glass. The sill is its best spot.

By plant

Rubber plant in a north window

Six to eight feet, says one guide. No distance here reaches a good fit.

By plant

ZZ plant in a west window

Three to four feet, or four to six? Each is right for half the year.

By plant

Prayer plant in a south window

A few feet back is on the line. The good strip runs from 1.5 to 4 metres.

By plant

Jade plant in a west window

A metre of floor, and five weeks more of the year than an east sill.

By plant

ZZ plant in a south window

Six feet back, says the advice. The line is a foot further in.

By plant

Parlor palm in a south window

The name says sun. The score says two and a half metres back.

By plant

Philodendron in a north window

The genus is called a shade plant. Only some of it is.

By plant

Prayer plant in a west window

The scorch warning has a season: April to August, on the sill.

By plant

Philodendron in an east window

A metre back is the answer from September to March. The rest of the year it is 1.5.

By plant

Parlor palm in a north window

The one sill of the four where its light isn't flagged.

By plant

Orchid in a west window

Too hot, too bright? On the sill, only from April to August.

By plant

Orchid in a north window

Too dark, says half the advice. It is the thermostat that decides.

By plant

Parlor palm in a west window

A few feet back works only in winter. Two metres works all year.

By plant

Spider plant in an east window

One to four feet works all year. Eight feet works from March to September.

By plant

Areca palm in a south window

Every care page says south. The limit is two metres back, not the glass.

By plant

Hoya in a west window

The worry is too much sun. The sill is only just bright enough.

By plant

Peperomia in a north window

Ideal or a survival shelf? It depends which peperomia, not which window.

By plant

Chinese evergreen in a west window

Five feet back works in March and September. From April to August it needs six.

By plant

Croton in a west window

Directly in front, or a few feet back? A few feet costs a whole band.

By plant

Croton in a south window

Touching the glass or across the room? The line is about seven feet.

By plant

Areca palm in a north window

Ideal, says one care page. Far too dim, says another. The sill is worth a try.

By plant

String of hearts in an east window

The gold standard window, but only within 60 centimetres of the glass.

By plant

Peperomia in a south window

Two peperomias, one sill, opposite answers. Which one is yours?

By plant

Hoya in a south window

Pull it back, says the advice. The sill is its best spot; the risk is too far back.

By plant

African violet in a south window

Every source says only with care. None says how far back. Two metres.

By plant

African violet in an east window

Twelve to eighteen inches, says the society. The step is at about two feet.

By plant

Pilea in an east window

The best window, everyone agrees. Its band sits three degrees cooler than most.

By plant

Pilea in a west window

A few feet back, says the answer box. On west glass that step changes nothing.

By plant

Chinese evergreen in a north window

Do pink kinds need more light? Some do. It follows the name, not the colour.

By plant

String of hearts in a west window

Pull it back three to four feet? The line runs right through that range.

By plant

Hoya in an east window

Within 60 cm of the glass. From October to early March even the sill falls short.

By plant

Hoya in a north window

Workable out to 1.7 m, but never a great fit. A fishtail hoya on the same sill is.

By plant

Croton in an east window

Great within 60 cm of the glass. From October to mid-March, not even on the sill.

By plant

Croton in a north window

Worth a try out to 1.7 m, never better. A lamp has to put 6,000 lux on the leaves.

By plant

String of hearts in a south window

Two feet back works all year. Three feet back slips for a month around midsummer.

By plant

String of hearts in a north window

Workable on the sill all year. A metre back, too dim from November into February.

By plant

Peperomia in an east window

Leafy kinds work nearly three metres back. A ruby glow gets the sill, March to September.

By plant

Peperomia in a west window

Light on the sill is fine all year. Warm air is the limit, and leafy kinds feel it first.

By plant

Christmas cactus in a west window

Curtain or not? The light is fine all year. Heat and bud-setting nights cost it points.

By plant

Christmas cactus in an east window

Ideal on the sill all year. Six feet back, it slips in the weeks it’s named for.

By plant

Christmas cactus in a north window

On the sill, light to spare; a metre back, it runs short from November into February.

By plant

Christmas cactus in a south window

Bright on the sill from September to April. Three to six feet back works all year.

By spot

The rooms people ask about most.9

By timing

Not where the plant goes, but when to do the thing: water, repot, feed, bring it in.6

By light situation

When you know what the light is like but not what will live in it.5

Measure your light

How to read a spot, what the numbers mean, and why the published ones disagree.29
Interactive

How many lux do plants need?

Type your reading, get the tier it lands in and the plants that live there.

Interactive

Which way does my window face?

One question about where the sun lands answers it. No compass needed.

Method

How to measure light for plants

Your eyes can’t judge it; your phone can. In ten seconds.

Method

How far from a window can a plant live?

Light doesn’t fade. It falls off a cliff. Where the edge is.

Method

The shadow test (no app)

Hold your hand over the spot. The shadow tells you the tier.

Method

Are light meter apps accurate?

Our two rounds scored 65 and 93 for the same plant. Where that matters.

Method

Why iPhone light meter apps disagree

No app can read the iPhone’s light sensor. They read the camera.

Pet safety

Cat-safe plants for low light

Six of the popular low-light picks are on the ASPCA toxic list.

Pet safety

Cat-safe hanging plants

The default hanging trio is toxic, and the hook moves the score from 94 to 66.

Species

How much light a snake plant needs

In lux. Its best spots are not the sill, and not the dark corner.

Species

How much light a jade plant needs

In lux. Nine indoor spots, and not one of them clears the bar.

Species

How much light a monstera needs

In lux. The published range is right, and about a quarter of the answer.

Species

How much light a pothos needs

In lux. The plant sold as living anywhere fails the sunny sill at 45.

Species

How much light a peace lily needs

In lux. The spot most guides recommend scores 46; three metres back it is 99.

Species

How much light a fiddle leaf fig needs

In lux. Three of nine spots pass, all sills. The cliff is at three metres.

Temperature

Minimum temperature, by plant

Six sources, eleven degrees apart. The plants are only six.

Humidity

Ideal humidity, by plant

A jade and a prayer plant share no comfortable level at all.

Humidity

Plants for dry air

At 30%, six of the eleven list regulars are outside their own band.

Airflow

Plants that tolerate cold drafts

The four usual names are identical on the air and nine degrees apart on the cold.

Airflow

Do plants need air circulation?

Not one species in our care data prefers still air. Most don’t want a fan either.

Temperature

Plants near a radiator

The heat costs nothing until 30 °C. The dry air is what takes the peace lily out.

Measuring

Bright indirect light, in foot-candles

Published bands run from 90 to 2,000 fc, and the two extremes do not overlap.

Diagnose

Leggy houseplants

The stretch is a light reading. Here is how much closer to move it.

Diagnose

Why plants die in winter

Four things change at once, and nobody moved the pot.

Diagnose

Why a plant leans to one side

The lean is a direction reading. Rotating changes the shape, not the spot.

Diagnose

Alive, but not growing

Every list gives ten causes. One of them answers to a measurement.

Diagnose

Monstera leaves not splitting

Three real causes. And the only one you can settle today.

Troubleshoot

Why your plant is dying in a bright room

“Bright room” describes the window, not your plant’s shelf.

The evidence

How bright is the middle of a room?

Six spots, one room: 20,000 lux to 18. The data essay.

Older guides

Kept for reference. Thinner than the rest, and not where we are putting the work.1

Find the right spot.

Free to start. Honest all the way through.

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