Why does my anthurium have brown tips?

The 4 most likely causes

The cause of anthurium 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.

1. Fluoride or chlorine in tap water (Likely)
   Anthurium 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.
2. Low humidity (Likely)
   Anthurium 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.
3. 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.
4. Underwatering or letting it dry too long (Possible)
   Underwatering looks similar to overwatering at first — both produce limp, dull leaves — but the soil tells the truth. If the soil is dust-dry several centimetres down, water deeply. Anthurium prefers when the top 3cm of soil is dry, every 7-10 days.

Why anthurium in particular

Brown, crispy tips are the anthurium's signature grievance and the clearest sign of its sensitive-tap trait. Fluoride, chlorine and sodium from ordinary tap water are not fully used by the plant; they travel to the leaf edges and tips where transpiration concentrates them, scorching that tissue first. Low household humidity, far from its 60-80% forest comfort, sharpens the effect. Periodically flushing the mix and switching to rain or filtered water usually halts the march.

Normal turnover, or real trouble?

Extent is the tell. A pinpoint of brown at the tip of one or two leaves is nearly universal on indoor anthuriums and purely cosmetic. Distinguish it too from a whole old leaf browning because it is at the end of its life. What signals trouble is browning that widens back into the green blade, or marches across many leaves at once, since that is scorch spreading rather than edge wear.

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

Change the water before you change anything else. Flush the pot heavily with rain, distilled or filtered water to wash out the sodium and fluoride concentrated at the roots, then keep watering with that same low-mineral supply. Trim dead tips for looks if you wish, cutting just into the brown. Do not overfeed or keep the mix soggy chasing the browning, since that only adds salts and rots roots instead.

This is the recovery sequence Growli walks users through for anthurium with brown leaf tips. Work through the steps in order; skipping ahead is the most common reason a plant fails to bounce back.

1. Flush the salts out of the pot. Take anthurium 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.
2. 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.
3. 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.
4. Reset a steady watering rhythm. Tip burn loves a feast-famine cycle. For anthurium aim for when the top 3cm of soil is dry, every 7-10 days, checked with a finger 3-4cm down — never a fixed calendar day.
5. 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 anthurium 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 anthurium, the single biggest preventative is matching its native rhythm: when the top 3cm of soil is dry, every 7-10 days, 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

Related guides

• What's wrong with my plant? — the diagnosis apps compared
• Is anthurium toxic to cats and dogs? — toxic to pets, per the ASPCA
• How often to water anthurium — the watering brief
• When to repot anthurium — 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
• Anthurium — yellow leaves
• Anthurium — curling leaves
• Anthurium — drooping
• Monstera — brown leaf tips