| How do I get my blue hydrangeas to change color? |
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Q. How do I get my blue hydrangeas to change color? A. Color change varies somewhat by cultivar, but in general, Hydrangea macrophylla (unless it is a white one) is blue in acid soil and pink in alkaline soil. To make it pink, add lime or plant it near concrete such as a footing, foundation, or paving. |
