What household product can I use for may hydrangas to stay blue?
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Eil14629672
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dried coffee grounds
PH should be in the range of 5.7 to 6.0 try Epsom Salts is Magnesium sulfate and Sulfur is the mineral that we apply to the soil to lower the pH. rhodie and azalia food might help too
my grandma used copper pennies ....... not sure how much copper is in coins these days
Hydrangea's turn blue depending on the amount of iron in the soil. Older people I know used to bury rusty nails at the roots
I rake the needles out from under our white pine tree and sprinkle hands full around my hydrangias.