Brown tips vs brown edges vs brown spots
Browning isn't one problem. Crispy tips mean water stress, dry air, or salt build-up. Brown edges moving inward mean drought, scorch, or fertiliser burn. Discrete spots — especially with a defined border or a yellow halo — mean infection. And soft dark patches mean too much water. Read the texture and the border, not the colour.
The three patterns
| Pattern | Texture | Most likely cause | First move |
|---|---|---|---|
| Tips only | Crispy, dry | Low humidity, inconsistent watering, salt build-up | Water more evenly; flush the pot |
| Edges, moving inward | Crispy, sometimes with a yellow band | Drought, sun scorch, or over-fertilising | Check the soil and recent feeding |
| Discrete spots | Defined border, often a yellow halo | Fungal or bacterial infection | Isolate the plant; remove affected leaves |
| Soft dark patches | Mushy, spreading | Overwatering, or disease on wet leaves | Check the roots immediately |
| Pale dry patches, one side | Bleached, papery | Sunburn on the window side | Move it back from the glass |
Crispy tips: the most common and least serious
Tips brown first because they're the furthest point from the roots — when supply falls short, that's where it shows. Three usual causes:
- Dry air. Particularly in winter with heating on. Affects calatheas, ferns and marantas most.
- Inconsistent watering. Not underwatering exactly — a pattern of letting the plant get too dry, then soaking it. The swing is what damages tips.
- Salt build-up. Minerals from tap water and fertiliser accumulate. Flush the pot thoroughly with plenty of water every few months, letting it all drain away.
Spider plants, dracaenas and calatheas are notably sensitive to fluoride and chlorine in tap water. If crispy tips persist on those despite consistent watering, filtered or rainwater is worth trying.
Spots: the one to act on
Discrete brown spots with a clear border — especially ringed in yellow — usually indicate fungal or bacterial infection, and unlike the other patterns this one spreads. Move the plant away from its neighbours, remove badly affected leaves, stop misting, improve airflow, and water the soil rather than the foliage. Wet leaves are how most of these problems travel.
Soft, dark, spreading patches are different again and point back at water: either too much of it in the pot, or leaves that stay wet. Check the roots before anything else.
Should you cut the brown off?
For appearance, yes. Trim just inside the brown, following the leaf's natural shape, and leave a thin brown margin rather than cutting into green tissue — cutting into living tissue creates a fresh wound that browns again.
But understand what you're doing: it's cosmetic. The brown is dead and won't spread by itself. Trimming changes nothing about the cause, which is the thing worth your attention.
How to be sure it's fixed
Existing brown never turns green. The only evidence that a fix worked is new growth coming in clean. So: change one thing, photograph the plant, set a recheck date a couple of weeks out, and judge then. Changing three things at once and inspecting daily produces false conclusions in both directions.
If the leaves are yellowing rather than browning, that's a different tree — see yellow leaves. If you're unsure whether water is the culprit at all, start here.
FAQ
Why do my plant's leaves have brown tips?
Usually dry air, inconsistent watering, or mineral and fertiliser salts in the soil. Tips are furthest from the roots and lose out first.
Should I cut off brown tips?
For looks — trim just inside the brown, leaving a thin margin. It's cosmetic; the brown is dead and won't spread.
What causes brown spots?
Defined spots, especially with a yellow halo, usually mean infection. Soft dark spreading patches point at overwatering. Texture and border matter more than colour.
Is browning from tap water?
It can be — fluoride, chlorine and minerals accumulate. Spider plants, dracaenas and calatheas are notably sensitive. Try filtered water and flush the pot periodically.