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1 vote

What has happened to my hydrangea

This problem is unlikely to be due to soil ph issues - yes, a blue hydrangea does need acidic soil conditions to remain blue; if it's too alkaline the flowers will be pink, and if it's around neutral, ...
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2 votes

What has happened to my hydrangea

Hydrangeas need acid soil to be blue. They are pink in alkaline soil. Looks like the plant was grown in acid soil and your soil is alkaline. Your soil is gradually changing the flowers to pink. It ...
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