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Hydrangea03
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Joined: Fri Apr 29, 2016 9:08 pm
Location: Zone 6a

Hydrangea macrophylla 'Cardinal'

Hello,

I am looking to add some new hydrangeas this year and I came across a red hydrangea online named Hydrangea macrophylla 'Cardinal'. I'm not sure if it will actually be red in color as some images show or if it will really be dark pink/magenta. Does anyone have any experience with this variety or any other type of red hydrangea? Thank you for your help!

luis_pr
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Joined: Sun Jul 05, 2009 12:31 pm
Location: Hurst, TX USA Zone 7b/8a

Re: Hydrangea macrophylla 'Cardinal'

Hydrangeas do not have the pigments necessary to develop a true red color so think of those advertised as 'red' as being a dark shade of pink. Kardinal is a Teller Hybrid that is very pH sensitive; its sepals have a close resemblance to a red color. If planted in acidic soil (pH below 7), its bloom's color will change. It will resist turning blue in acidic soils and would first look purple-ish.

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