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Hydrangea macrophylla 'Nikko Blue'
Nikko Blue Bigleaf Hydrangea

'Nikko Blue', an old standard among Bigleaf Hydrangeas, has medium-blue inflorescences in acidic soils, but white to soft pink inflorescences in neutral to alkaline soils, due to the decreasing availability of aluminum ions as a function of increasing soil pH (or put another way, more acidic soils result in more intensely blue florets).


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Website Administrator: Dr. Tim Rhodus
Department of Horticulture and Crop Science
Email: rhodus.1@osu.edu
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