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Japanese Snowball vs. Blue Hydrangea: Different Plants, No Color Change

Japanese snowball (Viburnum plicatum) has white flowers; blue hydrangea (H. macrophylla) color changes with soil pH. Miracid or aluminum sulfate won't turn Viburnum blue. They are unrelated.

Perennials: Turning White Hydrangeas Blue: Why It Usually Doesn't Work and What Does; Are Moonflowers and Other Ornamentals Edible?; Mystery Blue and White Flower: Could Be Campanula; Post-Hurricane Hydrangea Recovery: Pruning Shock and Regrowth; Turning Pink Hydrangea Blooms Blue Again; Blue Hydrangea Never Blooms: Spring Freeze Kills Buds; Annabelle Hydrangea Blooms Stay Green: Normal Maturation or Soil pH?; Hydrangea 'Blue Bunny': Unique Involucrata with Rabbit-Ear Buds; White Deposits on Hydrangea Leaves: Pollen or Exudate; Changing Hydrangea Flower Colors: From Pink to Blue and Back

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