The tips of herbaceous plants often turn brown because the leaf tissue at the edges or tips is drying out or being damaged. This is commonly called leaf tip burn or tip necrosis. Several things can cause it:
- Underwatering or inconsistent watering: Roots cannot supply enough moisture, so the leaf tips dry first.
- Overwatering or poor drainage: Damaged roots may not absorb water properly, leading to brown tips even when soil is wet.
- Low humidity: Indoor plants and plants in dry climates can lose moisture faster than they can replace it.
- Too much fertilizer or salt buildup: Excess nutrients can draw water away from leaf tissues and burn the tips.
- Heat stress or strong sunlight: Hot conditions or sudden exposure to intense sun can damage leaf edges.
- Water quality issues: Tap water with high levels of salts, fluoride, or chlorine can cause browning in sensitive plants.
- Root problems or disease: Root rot, pests, or other stressors can reduce the plant’s ability to take up water.
What you can try:
- Check the soil moisture a few centimeters below the surface before watering.
- Ensure the pot or planting area drains well.
- Reduce fertilizer if you suspect buildup; flushing the soil with clean water can help potted plants.
- Trim off badly browned tips with clean scissors.
- Adjust light and humidity to match the plant’s needs.
If you share the plant name, whether it is indoors or outdoors, and how often you water it, I can help narrow down the likely cause.
