Two answers cover the overwhelming majority of stalled Pothos: light and pests.
Almost nobody starts there.
Everyone starts with watering, because watering is the lever we all know we’re pulling, and because it’s the one thing you actively do to a plant.
So people adjust their watering, wait, adjust it again, and six months later the plant is exactly the same size.
Meanwhile light is the cheat code nobody uses, and nobody ever believes they have pests.
We’ll do this in the order that finds the problem, rather than the order people usually try.
First: is it just the season?
Growth slows in winter. Less light reaches your windows, days are shorter, and a plant that isn’t receiving much energy doesn’t spend much. A Pothos putting out nothing in December is not necessarily a Pothos with a problem.
But I don’t want that to become a five-month excuse, because it’s only half the story. Winter slows growth, it doesn’t have to stop it. If your house is warm and the plant is somewhere properly bright, or you’re running a grow light, you should still see something happening, just at a gentler pace.
So use the season as context, not as an answer. If it’s January, your house is cold and the plant is three metres from a north window, that’s explained. If it’s June and nothing has moved since March, keep reading.
The crisp shadow test
Before you buy anything, do this.
On a normal bright day, hold your hand between the light source and the plant, at the height of the leaves. Look at the shadow it casts.
Sharp, defined edges: the light is good.
Soft, fuzzy, barely there: not enough.
No shadow at all: your Pothos is in the dark, whatever the room feels like to you.
Don’t bother with a light meter.
The affordable ones aren’t accurate enough to base decisions on and the accurate ones cost more than a shelf of plants.
Your eyes and a shadow will tell you what you need to know.
Just beware, because it catches everybody out: human eyes are extraordinary at adjusting to low light.
A room that reads as bright to you can be delivering almost nothing usable to a plant. The shadow doesn’t have that bias.
Light is the cheat code
If the shadow test came back fuzzy, stop reading and move the plant. Nothing else on this list will produce growth while the light is wrong.
Next to a big window. Not across the room from one, not near one, next to one. If that isn’t possible in your home, a grow light does the job properly and costs less than people expect.
How Much Light Does A Pothos Need? (Stop Putting It In The Dark)
Climbing changes what “growing” means
Pothos are climbers. In the wild they go up trees, and as they climb, the leaves get progressively bigger. That’s the plant’s natural direction of travel and it’s what it’s built for.
Give a Pothos something to climb, a moss pole or even a plank, and you’ll get faster growth and noticeably larger leaves.
Trailing is a completely valid choice, to be clear.
Trailing Pothos look great and need less intervention. But a trailing vine is a plant growing sideways and downwards rather than up, and to keep the leaves at a decent size while it does that, you need to give it more light than you would for a climbing one.
Light is what’s paying for those leaves either way.
How To Train Pothos To Climb A Moss Pole
Nobody ever thinks they have pests
The second most common answer, and the one people resist hardest.
Thrips in particular will stall a plant completely, because they specifically target soft new growth.
A plant under thrips pressure keeps starting leaves and keeps having them damaged before they open, which reads from the outside as simply not growing.
Look for silvery or bronze patches, distorted leaves that unfurl already damaged, and tiny black specks. And remember that not being able to see any insects proves nothing, because thrips hide in exactly the places you can’t see into.
My working position, which I’d recommend adopting: assume you have pests. It costs nothing, and it makes you check.
Common Pothos Pests: How To Identify and Destroy Them
Thrips on Pothos: How To Identify and Get Rid Of Them
Watering, briefly
You’ve probably already been here, which is why it’s this far down.
Both directions stall growth. Consistently underwatered plants don’t have the resources to build new leaves. Overwatered plants develop root problems and end up unable to take up water at all, which produces the same result by a different route.
The useful question isn’t “am I watering enough” but “is this soil ever actually drying out.” If it’s damp a week after watering, the problem is the setup rather than your schedule.
How Often To Water Your Pothos (The Honest Answer)
Roots
If nothing above has explained it, take the plant out of the pot and look.
Firm roots are fine, whatever colour they are. Mushy roots that squash between your fingers mean the plant is failing underground and everything above is downstream of that.
Root Rot In Pothos: Can You Save It?
Temperature
Pothos are tropical and they grow according to how warm they are. A plant in a cold room will slow right down even in decent light, and a plant near a draughty door or a cold single-glazed window is colder than the room’s thermostat suggests.
Warm and bright is the combination. Either one alone underperforms.
Has anything changed recently?
Plants sulk after disruption. If you’ve recently bought it, repotted it, or moved it somewhere new, a few weeks of nothing is a normal adjustment rather than a fault.
Nursery plants are a specific case: they’re grown in ideal glasshouse conditions and then moved into your house, which is dimmer, drier and cooler. A pause while a plant recalibrates to that is expected. Give it a couple of months before deciding anything is wrong.
Root bound: rarely the answer
I’ve put this down here deliberately, because “it must be root bound, repot it” is the most over-prescribed advice in houseplant care and it’s usually wrong.
Pothos tolerate a remarkable amount of root binding without complaint. Roots coming out of the drainage holes are not an emergency, they’re roots doing what roots do. A tight pot is not, on its own, a reason to repot.
That said, at the far extreme, where the pot is essentially solid root with almost no soil left and it needs watering every other day because there’s nothing left to hold moisture, growth does eventually slow. If you’re at that point, potting up one size will help.
Check the honest signs before you act on this, and note that repotting a plant that’s stalled for some other reason just adds stress to a plant that’s already struggling.
Signs Your Pothos Is Root Bound
Only now, think about feeding
If the light is good, the plant is warm, there are no pests, the roots are healthy, and it’s the growing season, then you may simply have a plant that has used up what’s available in its soil.
Don’t overthink this bit. Pick any houseplant fertiliser and use it every other watering during spring and summer, at the dose on the bottle.
The important part: fertiliser will not help if the light isn’t right. It’s a multivitamin. Brilliant for filling in something specific that’s missing, useless as a substitute for a decent diet. Feeding a plant that’s sitting in a dark corner doesn’t give it energy, because light is where the energy comes from. You’ll just be adding salts to soil that isn’t being used.
This is why feeding is the last item on this list rather than the first, despite being the thing most often sold as the answer.
What should growth actually look like?
Worth calibrating, because some people are worried about a plant that’s doing fine.
A healthy Pothos in good conditions during the growing season produces a new leaf on each active vine every couple of weeks or so. Not every day, and not on every vine simultaneously.
If you’re getting new leaves at all, even slowly, the plant is working. If you’ve had nothing anywhere on the plant for months in spring or summer, that’s a stall worth investigating.
How To Make Your Pothos Grow Faster
Frequently asked questions
Why has my Pothos stopped growing?
Most often light, and second most often pests. Both are commonly overlooked because people check watering first. Winter naturally slows growth too. If it’s the growing season and nothing has moved in months, test the light with the shadow test and inspect the newest growth for thrips damage.
How much light does a Pothos need to grow?
Enough that an object held at leaf height casts a sharp-edged shadow. Soft or absent shadows mean the light is too low for meaningful growth, however bright the room looks to you. A position right beside a window or a grow light will fix it.
Will fertiliser make my Pothos grow?
Only if light, warmth, roots and pests are already sorted. Fertiliser supplies nutrients, not energy, and energy comes from light. Feeding a plant in a dark spot does nothing useful and can build up salts in the soil. Once conditions are right, feeding every other watering in spring and summer helps.
Do Pothos stop growing in winter?
They slow down, because there’s less light available. They don’t necessarily stop. A Pothos in a warm home with a bright position or a grow light will usually keep producing leaves through winter, just more slowly.
Does my Pothos need repotting if it isn’t growing?
Usually not. Root binding is over-diagnosed and Pothos tolerate tight pots well. Roots visible at the drainage holes are normal. Only consider it if the pot is almost entirely root with no soil left and it dries out within a day or two.
Do Pothos grow faster when they climb?
Yes. They’re natural climbers, and given a moss pole or similar support they grow faster and produce larger leaves. Trailing plants grow perfectly well too, but need more light to maintain leaf size.
How fast should a Pothos grow?
In good conditions during spring and summer, roughly a new leaf every couple of weeks on each active vine. Growth that’s slower than that isn’t a failure, but months of nothing at all during the growing season points to a problem.