Troubleshooting worksheet
Yellow leaves
Leaves lose green color between veins, from the edges, or across the entire blade.
Look before acting
A visual match narrows questions. It does not prove a diagnosis.
Compare the location, pattern, affected plant parts, recent weather, watering, and changes in care before choosing a response.
Possible causes
Keep the list open at first.
01Normal aging of older leaves
02Too much or too little water
03Root stress or poor drainage
04Nutrient imbalance
05Disease or pest damage
Questions to answer
Look at the whole plant and root zone.
- Are the oldest or newest leaves affected first?
- Is the root zone wet, dry, or compacted?
- Is yellowing uniform or patterned?
- Did conditions change recently?
Low-risk actions
Change one thing at a time.
- Check moisture below the surface before watering.
- Remove only badly damaged foliage.
- Review drainage and recent fertilizer use.
- Compare the pattern with crop-specific extension guidance.
Working checklist