why has my white hydrangea turned pink?

I purchased both a blue and a white hydrangea, and have not planted them out yet, but they stand together in a semi shady spot and are regularly watered. The white flower has started to go pink. What would cause this, and is there anything I can do to return it to white?

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1 Comment To "why has my white hydrangea turned pink?"

#1 Comment By Nikki On 07/19/2012 @ 7:51 am

Hydrangea colors are based on nutrients in the soil. This article will explain more: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/change-hydrangea-color.htm ^[1]

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