Hydrangeas: Change the colour of your hydrangeas with simple coffee and egg shell hack


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Garden centres usually sell a home test kit or a pH meter.

A lower pH means the flowers tend to be blue.

A higher pH will mean the flowers produced are usually pink.

It’s not uncommon for hydrangeas to be shades of green and cream to start with.

This will change as the flowers mature.

Soil pH 5 to 5.5 = Blue

Soil pH 6 to 6.5 = Pink/purple

Soil pH 5.5 to 6.5 = Purple, or both blue and pink

To make your hydrangeas’ pink flowers turn blue, the soil needs to be made more acidic.



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