hydrangea - Knowledgebase Question

Mckees Rocks, Pe
Question by intersmith
May 20, 2008
How do you keep a blue hydrangea blue?

Answer from NGA
May 20, 2008


Blue hydrangeas will remain blue in acidic soils but will begin to turn pink if your soil is alkaline. Miracle Gro has a fertilizer that has acid in it. I use it about every two weeks for for 2-3 months beginning in early spring and the flowers my hydrangea produces are blue. Give it a try!

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