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    Every Southern garden should include this classic pass-along plant.

    Growing Blue Hydrangeas: Blue flowers are produced in acid soil (pH 5.5 and lower), and pink flowers are produced in alkaline soil (pH 7 and higher). You can add garden sulphur, acidic organic mulch or aluminum sulfate around your hydrangeas to acidify the soil to encourage the blue. For pink flowers, add lime to make the soil more alkaline. I'm growing these!!



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