Why do plant leaves get brown spots?

Treatment depends entirely on the type of brown spot — so correct identification is critical.

The 4 types

1. Brown tips (dry edges)

Cause: low humidity or underwatering. Fix: water consistently, mist in winter, use room-temp water.

2. Soft brown patches

Cause: overwatering/root rot. Fix: stop watering immediately, improve drainage.

3. Brown spots with yellow halo

Cause: fungal or bacterial infection. Fix: isolate plant, remove affected leaves, treat with bordeaux mixture.

4. Dry crispy patches

Cause: sunburn. Fix: move away from direct sunlight, provide bright indirect light.

Should you cut brown-spotted leaves?

If more than 50% of a leaf is affected: yes. Use disinfected scissors.

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