Nutrient
Nitrogen deficiency
Nitrogen deficiency usually shows up first on older leaves, which turn pale or yellow while newer growth stays greener.
How to confirm it
- Check whether older lower leaves are affected before newer leaves.
- Compare overall growth to healthy plants of the same age.
- Review recent fertilizing history before making changes.
Next Steps
Fixes connected to this cause
Test garden soil
A soil test helps separate nutrient guesses from actual nutrient problems.
Mulch a garden bed
Mulch moderates soil temperature and moisture swings, which can reduce stress-related symptoms.