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Soil Acidity on blueberry
What's Happening
Blueberries require acidic soil (pH 4.5-5.5) to absorb nutrients like iron. Regular potting soil is too alkaline, and tap water gradually raises pH over time, causing iron chlorosis (yellow leaves with green veins).
How to Fix It
- 1
Plant strictly in an acidic mix like camellia/azalea mix or 50% peat moss / 50% pine bark.
- 2
Top dress with elemental sulfur or soil acidifier twice a year.
- 3
Water with rainwater or distilled water when possible, as tap water often contains alkaline minerals.
- 4
Apply an acid-forming fertilizer (like ammonium sulfate) in early spring.
How to Prevent It
Test container pH every 6 months and avoid using regular potting soil or alkaline tap water.
Related Problems
Frequently Asked Questions
What causes soil acidity on my plant?
Blueberries require acidic soil (pH 4.5-5.5) to absorb nutrients like iron. Regular potting soil is too alkaline, and tap water gradually raises pH over time, causing iron chlorosis (yellow leaves wit...
How do I fix soil acidity?
Plant strictly in an acidic mix like camellia/azalea mix or 50% peat moss / 50% pine bark.. Top dress with elemental sulfur or soil acidifier twice a year..
How do I prevent soil acidity from happening again?
Test container pH every 6 months and avoid using regular potting soil or alkaline tap water.