Adding Sulphur to Endless Summer Hydrangea - Knowledgebase Question

Chicago, IL
Question by cg34
June 30, 2006
How often should I add sulphur to my hydrangea to make the flowers blue. Thanks


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Answer from NGA
June 30, 2006

0

You can treat with sulphur in February or March (while the flower buds are forming) to ensure blue flowers each summer. Best wishes with your hydrangea!

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