Yellow Leaves on Plants: 7 Causes and Fixes
Yellow leaves are your plant crying for help. Here is how to diagnose the cause and save your plant.
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Written by Tom Harrison
Certified Master Gardener · 18 years experience
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In this article
1. Cause 1: Overwatering2. Cause 2: Underwatering3. Cause 3: Nutrient Deficiency4. Cause 4: Too Much or Too Little LightCause 1: Overwatering
The most common cause. Roots in soggy soil cannot absorb oxygen. Signs: soft, mushy yellow leaves, soil stays wet for days. Fix: let soil dry out completely, ensure drainage holes.
Cause 2: Underwatering
Leaves feel dry and crispy. Fix: water thoroughly until it drains from the bottom.
Cause 3: Nutrient Deficiency
Nitrogen deficiency causes older leaves to turn yellow. Iron deficiency causes new leaves to turn yellow with green veins. Fix: balanced liquid fertilizer.
Cause 4: Too Much or Too Little Light
Too much sun causes scorched patches. Too little light causes pale, leggy growth. Research your specific plant needs.
Pro Tips
✓A few yellow lower leaves is normal aging
✓Use pots with drainage holes
✓Most plants need less water in winter
✓A moisture meter ($10) removes guesswork
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