Brown tips or crispy edges
Why does my Donkey's tail have brown, crispy tips?Sedum morganianum
Brown, crisp tips and edges on a Donkey's tail are the plant telling you its environment is a little too harsh or dry. The pattern points to the cause.
Too much direct sun. Move it back from the glass into its bright / direct light range.
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What's causing it
Too much direct sun
How to tell: Dry brown patches or scorched edges show up where strong sun hits the leaf — Donkey's tail is bright / direct light, not a full-sun plant.
The fix: Move it back from the glass into its bright / direct light range.
Tap-water salts (a smaller factor here)
How to tell: Donkey's tail tolerates tap-water minerals better than more sensitive foliage plants (calatheas, prayer plants), so this is rarely the main cause — but salts can still build up in a mix that's never flushed.
The fix: If tips keep browning despite correct watering, flush the mix thoroughly with plain water every few months to clear any accumulated salts.
Fertiliser burn (easy to cause on this plant)
How to tell: Brown tips appear with a white crust on the surface — Donkey's tail needs so little feeding that a normal houseplant dose is often already too strong for it.
The fix: Flush thoroughly with plain water, then feed at half the recommended strength and only once or twice a season.
Dry air (low humidity)
How to tell: Just the very tips and edges go brown and papery while the rest of the leaf is fine — most common in winter with the heating on, and Donkey's tail prefers 30-40% humidity.
The fix: Raise humidity with a pebble tray or humidifier nearby — skip misting directly on the leaves, which can encourage rot on this plant.
Occasional dry spells (a minor factor here)
How to tell: Because Donkey's tail goes long stretches between waterings by design, the very oldest leaf tips can dry and brown even with correct care — this is a much smaller factor than on thirstier plants and rarely the main cause.
The fix: Stick to every 14 to 21 days in summer and don't compensate for a browning tip by watering more often — that risks the bigger problem, rot.
Not sure which one it is?
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Keep humidity up with a pebble tray or humidifier rather than misting the leaves, water before the mix goes bone dry, and feed lightly.
Common questions
Should I cut the brown tips off my Donkey's tail?
You can — trim them with clean scissors, following the leaf's natural shape, but leave a thin sliver of brown rather than cutting into green, which just re-browns. Cosmetic only; fix the cause to stop new tips browning.
Should I mist my Donkey's tail to fix brown tips?
Better not to — misting this plant's leaves directly can invite rot or spotting. Raise ambient humidity with a pebble tray or humidifier near it instead, without wetting the foliage.
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