Scored for a bird’s nest snake plant at 22 °C and 50% humidity, a north sill comes back 99 out of 100. Four metres into the room, at latitude 51, it still scores 97 or 98 for nine months of the year and dips to 68 only from November to January. The bigger fall happens on the sill itself once the air there cools: at 18 °C the same spot reads 67.
Read on 14 October 2026, the top results split into two camps. Soltech says a snake plant excels in low light, and a Reddit commenter listing what grows in their north windows calls it all thriving. Mars Hydro and Low Light Leaf say it works there, or survives, with slower growth. On placement, nobody says to pull it back. Everest and a Snake Plant Society thread on Facebook push the pot toward the glass, and Folia Collective puts a number on it: within two feet.
That Reddit comment has a footnote, though: a plant light goes on in winter. Read that way, the two camps describe one window in two seasons, and the scores below side with each in turn.
Great fit
This plant should be happy in this spot.
Just the right amount of light
Comfortable temperature
Humidity suits it
Airflow suits it
Is a north window enough light for a snake plant?
Here are the light figures other sites print for a snake plant, each in the unit its source chose:
| Who publishes it | What it says a snake plant needs | What the figure is |
|---|---|---|
| theplantrunner.com | 300–800 lux | True low-light crew (ZZ, snake plant, cast-iron plant, some ferns) |
| houseplantjournal.com | 100 foot-candles | Sansevieria — minimum indirect light |
| houseplantjournal.com | 200 foot-candles | Sansevieria — good indirect light |
| growlightmeter.com | 5 – 10 PPFD / DLI | Snake Plant |
| extension.arizona.edu | 25–75 foot-candles | listed under the heading "Low Light (25–75 fc)" |
| apps.apple.com | 500 lux | per-plant figure — thrives at this level |
| houseplantsnook.com | 50–100 foot-candles | chart fc level |
| soltech.com | approximately 64–98 PPFD / DLI | Snake Plant FAQ — target PPFD by size |
Enough, with room to spare. On the sill the light dimension reads ideal, which is why the card above gives the spot 99. Two readings from the season table further down land among those published figures. October’s 509 lux at four metres sits on the 500 that one light-meter app gives as the level this plant thrives at, and our score agrees at 97. December’s 350 lux is inside The Plant Runner’s 300 to 800 band for its true low-light crew, and there our score is stricter: a little dim, 68.
How far from a north window can a snake plant go?
Further than most rooms go, until midwinter. Here is one spot four metres from a north window at latitude 51 degrees, about where London sits, month by month:
| The month it is | Estimated light | What the light is doing | Verdict |
|---|---|---|---|
| June | 840 lux | Just the right amount of light | Great fit, 98/100 |
| October | 509 lux | Just the right amount of light | Great fit, 97/100 |
| November | 354 lux | A little dim, but workable | Worth a try, 68/100 |
| December | 350 lux | A little dim, but workable | Worth a try, 68/100 |
| January | 360 lux | A little dim, but workable | Worth a try, 68/100 |
| February | 518 lux | Just the right amount of light | Great fit, 97/100 |
From February to October that spot reads between 509 and 840 lux and scores 97 or 98. In November it falls to 354 lux, the light tips from ideal to a little dim, and it stays there until February. A metre forward, at three metres, the same three months still read a great fit. So in midwinter this plant’s edge in a north room sits between three and four metres from the glass, and from March to September it reaches six.
That makes the push-it-forward advice right for a pot at the back of the room, for a quarter of the year. From the sill to three metres back the December light already sits inside this plant’s band, so carrying a pot from two metres to the glass buys it next to nothing on light.
The lux numbers in that table come from a model of the window, the distance and the date under a clear sky, not from a meter. A grey week in December pulls the edge further toward the window.
What actually holds a snake plant back on a north sill?
Cold. Leave the pot on the sill and change nothing but the air temperature. Then watch which column moves:
| Air temperature at the sill | What the light is doing | What the warmth is doing | Verdict |
|---|---|---|---|
| 12 °C | Just the right amount of light | Too cold here | Not the best fit right now, 45/100 |
| 14 °C | Just the right amount of light | Too cold here | Not the best fit right now, 47/100 |
| 15 °C | Just the right amount of light | A little cool, but workable | Worth a try, 63/100 |
| 18 °C | Just the right amount of light | A little cool, but workable | Worth a try, 67/100 |
| 19 °C | Just the right amount of light | Comfortable temperature | Great fit, 98/100 |
| 22 °C | Just the right amount of light | Comfortable temperature | Great fit, 99/100 |
The light column never moves. Every row has the right amount of light, and the score still runs from 99 down to 45, in two steps. Between 19 and 18 °C the warmth goes from comfortable to a little cool and the score from 98 to 67, great fit to worth a try for one degree. Below 15 °C, the floor our care data gives this plant, it drops again, to 47 at 14 °C.
Folia Collective is the one result we read that touches this. Its advice is to get plants close to the glass without letting them touch cold panes in winter, and for a snake plant the second half of that sentence matters more than the first. A north pane gets no winter sun to warm it, so on a January night the air right against it can sit well below the room. The score takes whatever air temperature it’s given; it has no idea how cold your glass runs. A thermometer left beside the pot overnight, read before the heating comes on, does.
Where should a snake plant sit in a north room in winter?
Between the two problems. The cold is at the glass and the dim is at the back, and for this plant they’re a long way apart. A metre or two in keeps the December light inside its band and moves the pot out of the coldest air by the pane. Move it there in November and back to the sill in spring, if the sill is where you like it. Cold glass is one of four things winter changes at once, and the guide to plants dying in winter takes them one at a time.
The Reddit commenter’s plant light answers the same problem from the other end, and the season table says where it earns its place: a pot four metres back, from November to January. On the sill, where the light already reads ideal, it has far less to do.
Which window is best for a snake plant?
At the glass, north. A west sill reads a little too bright for this plant, and the flag only clears about a metre back. A south window keeps it flagged until three metres in, and an east one only for the first half metre, and only from spring to early autumn. North is the one window of the four where the sill itself is a great fit, and the sill is where most people want the pot. A peace lily reads the same north sill almost number for number.
The page on how much light a snake plant needs lays out its band in lux, from a south sill down to a corner four metres from any window. A ZZ plant in this same window scores almost identically, and its page takes on the claim that a ZZ would grow in a closet.
What could make your north window read differently?
All of this assumes a north window with open sky in front of it. A building close across the street takes light off every row of the season table, and so does a deep balcony overhead. The north window guide scores 42 plants on one sill, if this one needs company. To score your own shelf rather than a clean one, the free spot checker runs the same scoring with the weather where you live.
Published October 14, 2026
