How to Change Hydrangea Color: Blue to Pink and Back
Hydrangea color change works by adjusting soil pH and aluminum availability, not by treating the flowers themselves. Acidic soil around pH 5.5 or lower produces blue blooms, while alkaline soil above pH 6.5 produces pink blooms. The process takes one to two growing seasons and only works on certain bigleaf and mountain hydrangea varieties. Skip […]
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