How to make hydrangeas blue? and stay blue

Little Marge
by Little Marge
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  • Janet Pizaro Janet Pizaro on May 10, 2017

    www.hometalk.com/diy/grow/flowers/changing-the-color-of-hydrangeas-9494982
    changing the color of hydrangeas, flowers, gardening, hydrangea, landscape
    Changing The Color Of Hydrangeas
  • Lynn Lynn on May 10, 2017

    To encourage blue hydrangea flowers, grow the plant in soil that has a pH of 5.2-5.5. If your soil is more alkaline, you can lower the pH by applying Soil Acidifier at the rate specified on the package. Soil pH can also be lowered (more gradually) by applying an acidic organic mulch, such as pine needles or pine bark.
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