Soil type determines hydrangeas' impressive shades

By Geoff Hicks
November 21 2018 - 2:00am
HYDRANGEAS: The colour of this plant's impressive flowers is determined by soil pH.
HYDRANGEAS: The colour of this plant's impressive flowers is determined by soil pH.

Hydrangeas are in flower in many gardens, as well as being available in nursery and garden centres. Many people are familiar with the large heads of numerous individual flowers, in colours of pinks and blues.

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