Hydrangea Plants

Changing Color of Hydrangeas

suzymazz added on June 10, 2017 | Answered

Can I use dissolved aluminum sulfate in water and pour it right on the blooms before they fully blossom? I've heard people do it and it really changes the color to a deeper blue than just putting it around the drip line.

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Certified GKH Gardening Expert
Answered on June 12, 2017
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