Yellow or Burnt Leaf Tips on Cannabis
Yellow or brown-tipped cannabis leaves are almost always nutrient burn. The fix is to feed less.
What it looks like
- ●Tips of leaves yellow or brown and crispy
- ●Burn advances inward from the very tip
- ●Upper leaves affected worst (newest growth)
Quick diagnostic checks
Measure before you treat
Plant diagnostic essentials
These tools help confirm the cause of yellow leaf tips before you change nutrients, watering, or the environment.
VIVOSUN pH and TDS Meter Combo
Check root-zone pH and nutrient strength before changing a feeding plan.
Check price on AmazonApera Instruments PH20 Meter
A more accurate, waterproof pH meter for repeatable root-zone checks.
Check price on AmazonFoxFarm Liquid Nutrient Trio
A complete, staged nutrient system for vegetative growth and flowering.
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Causes ranked by likelihood
1. Overfeeding
Most commonSigns
- ●Following bottle dose (usually too strong)
- ●Dark green leaves
Fix
- ✓Flush with 3x pot volume of pH 6.5 water
- ✓Feed at 50% strength going forward
- ✓Cannabis likes LESS nutes than you think
⚠️When to worry
Progressive tip burn (more than ⅛" per week) = ongoing overfeed. Adjust and monitor.
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