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Why Meyer Lemon Tree Leaves Turn Yellow, Curl or Drop
If your Meyer lemon tree leaves are turning yellow, curling, or falling off, the cause is almost always related to nutrition imbalance, watering stress, or root zone problems. Meyer lemons are heavy feeders with sensitive roots, especially in pots, and they respond quickly when conditions are off.
The most common cause is potassium and micronutrient deficiency. Citrus trees use large amounts of potassium to regulate water movement in leaves, support flowering, and maintain leaf structure. When potassium runs low, leaves often yellow from the edges inward, curl upward or downward, and eventually drop.
The fastest and most reliable correction is feeding with a citrus-specific fertiliser formulated for fruiting trees. We directly recommend CompleteGrow Citrus Fertiliser (NPK 6-2-12 + Trace Elements) , which is intentionally potassium-rich to correct yellowing leaves, reduce leaf curl, and stabilise leaf drop in Meyer lemon trees.
- NPK 6-2-12 citrus ratio supports leaf strength, flowering and fruit retention
- EDTA-chelated iron, zinc and manganese correct interveinal yellowing
- Designed for potted and in-ground citrus, including Meyer lemons
How to Fix Curling, Yellowing and Dropping Leaves
Correcting leaf problems on a Meyer lemon tree requires addressing both nutrition and root conditions. Treating only symptoms without fixing the cause will result in repeated leaf loss.
1. Restore Proper Citrus Nutrition
Apply CompleteGrow Citrus Fertiliser (NPK 6-2-12) once weekly during active growth. The high potassium level strengthens leaf tissue, improves water regulation, and prevents stress-induced curling.
During heavy flowering or fruit development, calcium demand increases. At this stage only, supplement with Cal-Mag Nutrients to prevent leaf edge burn, premature yellowing, and fruit stress.
2. Correct Watering and Root Stress
- Water deeply, then allow the top layer of soil to dry slightly
- Avoid shallow daily watering, which suffocates roots
- Ensure pots drain freely with no standing water
Poor drainage causes roots to lose oxygen, leading to sudden yellowing and leaf drop even if the tree was previously healthy.
Meyer Lemon Tree Leaf Problems โ FAQ
This section answers the most common questions about curling, yellowing and leaf drop on Meyer lemon trees.
Do Meyer lemon trees naturally lose their leaves?
No. Meyer lemons are evergreen. Leaf drop indicates stress from nutrition, watering, temperature swings, or root damage.
Why are my potted Meyer lemon leaves curling?
Curling is usually caused by potassium deficiency, inconsistent watering, or heat stress. Potted trees show symptoms faster than in-ground trees.
Can yellow leaves turn green again?
Yes, if caused by nutrient deficiency and corrected early with a citrus fertiliser containing potassium and trace elements.
What is the best fertiliser for yellowing Meyer lemon leaves?
A potassium-rich citrus fertiliser such as CompleteGrow Citrus Fertiliser (NPK 6-2-12) , supplemented with Cal-Mag only during heavy fruiting.
How long does it take for leaves to recover?
Improvement is usually visible within 2โ3 weeks once nutrition and watering are corrected.
Meyer Lemon Guides Hub
Meyer Lemon Tree Care Guide
A complete care guide covering pot vs ground growing, sunlight, watering, pruning, and how to keep your Meyer lemon healthy year-round.
Meyer Lemon Fertilizer Guide
Learn what fertilizer Meyer lemons need, when to fertilize, and how to build a simple feeding routine for better flowering and fruiting.
Meyer Lemon Yellow Leaves: Causes & Fertiliser Fix
Understand why Meyer lemon leaves turn yellow and how to correct nutrient issues fast, especially in potted trees.
Meyer Lemon Leaves Curling or Dropping: How to Fix It
A practical troubleshooting guide for curling leaves, sudden leaf drop, and stress symptoms, with steps to stabilise your tree.
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