Hydrangea pink and blue

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    1. julesberry2001 56 months ago | reply

      From www.usna.usda.gov/Gardens/faqs/hydrangeafaq2.html

      "For most bigleaf hydrangea cultivars, blue flowers will be produced in acidic soil (pH 5.5 and lower), whereas neutral to alkaline soils (pH 6.5 and higher) will usually produce pink flowers. Between pH 5.5 and pH 6.5, the flowers will be purple (see image at left) or a mixture of blue and pink flowers will be found on the same plant."

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