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Based on 20,000+ analyzed cases
Chlorosis on blueberry
What's Happening
When soil pH rises above 5.5, blueberries cannot access iron in the soil, even if it is present. This leads to interveinal chlorosis, where leaves turn yellow but the veins remain distinctly green.
How to Fix It
- 1
Apply a fast-acting chelated iron foliar spray for immediate relief.
- 2
Lower the soil pH by top-dressing with elemental sulfur or watering with a diluted vinegar solution (1 tbsp per gallon) as a stopgap.
- 3
Repot into an acidic peat-based mix if the current soil is heavily alkaline.
How to Prevent It
Consistently monitor pH and avoid using municipal tap water containing high calcium carbonate.
Related Problems
Same Problem on Other Plants
Frequently Asked Questions
What causes chlorosis on my plant?
When soil pH rises above 5.5, blueberries cannot access iron in the soil, even if it is present. This leads to interveinal chlorosis, where leaves turn yellow but the veins remain distinctly green.
How do I fix chlorosis?
Apply a fast-acting chelated iron foliar spray for immediate relief.. Lower the soil pH by top-dressing with elemental sulfur or watering with a diluted vinegar solution (1 tbsp per gallon) as a stopgap..
How do I prevent chlorosis from happening again?
Consistently monitor pH and avoid using municipal tap water containing high calcium carbonate.