How Do Hydrangeas Change Colors?

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Savvy gardeners know that they can fine-tune they color of their hydrangea blooms by just changing the soil pH. But what does pH have to do with color?


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Producer: Elaine Seward
Writer: Alexa Billow
Scientific Consultants: Henry Schreiber, PhD; Michelle Boucher, PhD
Images: Bailey Nurseries
Executive Producer: George Zaidan
Fact Checkers: Alison Le
Smidi – Easy Listening
LANCARTIS – Disco-Funk Classic Version
Alandra Lightflower Jones – Strike it up


Ever wonder why dogs sniff each others’ butts? Or how Adderall works? Or whether it’s OK to pee in the pool? We’ve got you covered: Reactions a web series about the chemistry that surrounds you every day.

Produced by the American Chemical Society.

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