Yellow Leaves on indoor lime
What's Happening
Lime trees are 'fussy' in containers and highly sensitive to oversized pots. Excessive soil volume retains too much moisture, creating alkaline microsites and root anaerobiosis, which leads to the lockout of nitrogen, iron, and magnesium even if nutrients are present.
How to Fix It
- 1
Select a pot only 1-2 inches larger than the current root ball; citrus prefer being slightly root-bound.
- 2
Use a gritty, fast-draining substrate (50% inorganic like perlite or pumice).
- 3
Flush soil thoroughly if mineral buildup is suspected from hard water.
- 4
Apply chelated cal-mag supplements to bypass root uptake issues during recovery.
How to Prevent It
Avoid the temptation to 'up-size' pots based on top growth; only repot when roots are visibly circling. Use moisture meters to verify deep soil dryness before watering.