Plant diagnosis
Why does my pothos have brown tips?
Trailing aroid native to the Solomon Islands — the most forgiving vine in the houseplant world.
The 5 most likely causes
The cause of pothos brown leaf tips usually narrows to one of the items below, ranked by how often we see each in Growli's diagnostic chats. Work down the list — most readers find their answer in the top two.
- Inconsistent watering rhythm (Most likely)
Leaf tips are the last stop on the plant's water pipeline, so they are the first casualty when supply keeps stuttering. Swinging between bone-dry and soaked stresses pothos even when the average amount of water is right. Settle into a steady rhythm — when the top half of the soil is dry, every 7-10 days — and check with a finger, not a calendar. - Low humidity (Likely)
Pothos is native to humid environments and struggles when household humidity drops below 40%. The first sign is crispy brown leaf tips, followed by pale, curling foliage. A humidifier, a pebble tray, or grouping plants together raises local humidity meaningfully. - Fluoride or chlorine in tap water (Likely)
Pothos is sensitive to the fluoride and chlorine added to most municipal water supplies. Minerals build up at the leaf tips and cause crispy brown edges or speckled spots. Switch to rainwater, filtered water, or tap water that has sat uncovered for 24 hours so the chlorine can off-gas. - Fertiliser salt buildup in the soil (Likely)
Months of feeding leave mineral salts behind in the potting mix. The salts pull water away from the finest root tips, and the damage shows up at the far end of the water pipeline — the leaf tips — as crisp brown edges that keep creeping. Flush the pot with plain water until it runs freely from the drainage hole, two or three times in a row, every couple of months during the feeding season. - Root-bound in its pot (Likely)
When roots circle the pot, water runs straight through and the plant can no longer take up nutrients. Pothos typically needs a fresh pot every 1-2 years — one size up, not several. If you can see roots through the drainage holes or the soil dries in a day or two, repot.
Why pothos in particular
The thin leaf margins of this tropical vine are the first place low humidity, salt build-up or erratic watering shows, drying to a fine brown crisp at the tips and edges while the leaf centre stays green. Pothos is not as humidity-hungry as a calathea, so persistent crisping in an average room more often traces to mineral salts from feed or hard tap water gathering at the leaf edges, or a pot that swings between bone-dry and soaked.
Normal turnover, or real trouble?
A fleck of crisp brown on the tip of an old, low leaf, while every new leaf emerges clean, is ordinary wear on a mature vine and not worth chasing. What changes the reading is fresh foliage crisping too, or margins browning right across the plant at once. Pothos shrugs off average room air, so widespread edge-crisping is telling you something specific, usually mineral salts gathering at the margins, rather than simple age.
How to diagnose in 60 seconds
Run these quick checks before you change anything — the right fix depends on what you find.
- Is the browning confined to the very tips and edges, or spreading inward in patches? Tips-and-edges = moisture/air/minerals; spreading patches = disease or rot.
- What water do you use? Straight tap water in a hard-water or fluoridated area is the most common brown-tip culprit for sensitive species.
- Check humidity with a cheap digital hygrometer near the plant. Below 40% is brown-tip territory for tropical foliage.
- Look for a white crust on the soil surface or the pot rim — that is fertiliser salt buildup, and the tips are where it bites.
The fix — step by step
Because the usual culprit is salt at the margins, the first move is to leach the pot: take it to the sink and run plenty of plain, tepid water through until it drains freely for a minute or two, flushing minerals out the base. Then ease off feeding and switch to filtered or collected rainwater if your tap runs hard. Raising humidity alone will not fix salt already in the soil.
This is the recovery sequence Growli walks users through for pothos with brown leaf tips. Work through the steps in order; skipping ahead is the most common reason a plant fails to bounce back.
- Flush the salts out of the pot. Take pothos to the sink and run room-temperature water through the pot until it flows freely from the drainage hole — then do it twice more. This washes out accumulated fertiliser and tap-water minerals, the most common tip-burn driver.
- Fix the water itself. Switch to filtered water, rainwater, or tap water left uncovered for 24 hours so chlorine can off-gas. For fluoride-sensitive species this single change stops new tips browning within a leaf generation.
- Raise the humidity around the plant. Aim for 45-55% relative humidity: a small humidifier, a pebble tray under the pot, or grouping plants together all work. Misting alone doesn't — it raises humidity for minutes, not hours.
- Reset a steady watering rhythm. Tip burn loves a feast-famine cycle. For pothos aim for when the top half of the soil is dry, every 7-10 days, checked with a finger 3-4cm down — never a fixed calendar day.
- Trim the brown tips cleanly (optional). Brown tissue never re-greens. For looks, trim the dead tip with clean scissors following the leaf's natural shape, leaving a hair-thin line of brown — cutting into live green tissue just restarts the browning.
When this can't be saved
Most cases of pothos brown leaf tips are recoverable, but a few red flags point to a plant that has gone past the point of return. If you spot any of these, consider propagating a clean cutting and starting over.
- The browning is marching inward past a third of the leaf on most leaves within days — that is active tissue death, not cosmetic tip burn.
- Brown tips are paired with a soft, darkening stem base — the real problem is rot below the soil, not the air above it.
- A thick salt crust keeps returning days after a full flush — the mix is saturated with minerals and needs replacing, not rinsing.
Prevention
For pothos, the single biggest preventative is matching its native rhythm: when the top half of the soil is dry, every 7-10 days, medium to bright indirect light, and a free-draining pot with a working drainage hole. Water with filtered, rain, or overnight-rested water if your tap is hard or fluoridated, keep a hygrometer near the plant and hold humidity above 45%, and flush the pot through with plain water every couple of months during the feeding season so salts never accumulate to burning levels.
Common questions
Why is my pothos brown leaf tips?
Pothos developing brown leaf tips is most often caused by inconsistent watering rhythm. Flush the pot through with plain water, switch to filtered or rested water, and raise humidity above 45%.
What is the most common cause of pothos brown leaf tips?
The most likely cause is inconsistent watering rhythm. Leaf tips are the last stop on the plant's water pipeline, so they are the first casualty when supply keeps stuttering. Swinging between bone-dry and soaked stresses pothos even when the average amount of water is right. Settle into a steady rhythm — when the top half of the soil is dry, every 7-10 days — and check with a finger, not a calendar.
Why does this happen to pothos in particular?
The thin leaf margins of this tropical vine are the first place low humidity, salt build-up or erratic watering shows, drying to a fine brown crisp at the tips and edges while the leaf centre stays green. Pothos is not as humidity-hungry as a calathea, so persistent crisping in an average room more often traces to mineral salts from feed or hard tap water gathering at the leaf edges, or a pot that swings between bone-dry and soaked.
How do I fix a pothos with brown leaf tips?
Because the usual culprit is salt at the margins, the first move is to leach the pot: take it to the sink and run plenty of plain, tepid water through until it drains freely for a minute or two, flushing minerals out the base. Then ease off feeding and switch to filtered or collected rainwater if your tap runs hard. Raising humidity alone will not fix salt already in the soil.
Is pothos brown leaf tips normal, or a real problem?
A fleck of crisp brown on the tip of an old, low leaf, while every new leaf emerges clean, is ordinary wear on a mature vine and not worth chasing. What changes the reading is fresh foliage crisping too, or margins browning right across the plant at once. Pothos shrugs off average room air, so widespread edge-crisping is telling you something specific, usually mineral salts gathering at the margins, rather than simple age.
How do I prevent pothos brown leaf tips?
For pothos, the single biggest preventative is matching its native rhythm: when the top half of the soil is dry, every 7-10 days, medium to bright indirect light, and a free-draining pot with a working drainage hole. Water with filtered, rain, or overnight-rested water if your tap is hard or fluoridated, keep a hygrometer near the plant and hold humidity above 45%, and flush the pot through with plain water every couple of months during the feeding season so salts never accumulate to burning levels.
Related guides
- What's wrong with my plant? — the diagnosis apps compared
- Pothos care guide — full watering, light, and feeding routine
- Is pothos toxic to cats and dogs? — toxic to pets, per the ASPCA
- How often to water pothos — the watering brief
- When to repot pothos — pot size and timing
- Brown leaf tips on plants — the full diagnostic guide across species
- What's wrong with my plant? — Growli's flagship diagnosis index
- Pothos — yellow leaves
- Pothos — curling leaves
- Pothos — drooping
- Monstera — brown leaf tips