Despite common myths, hydrangeas—whose name translates to 'your whims pain me' in the language of flowers—are not heather plants.
This beloved shrub dislikes highly calcareous soils, showing its displeasure through striking ferric chlorosis. It thrives in soil with a pH between 6.5 and 7.5, especially for pink or red varieties. Excessive acidity can turn blooms purple, while whites remain unchanged.
Blue hues aren't natural for most hydrangeas (beyond their striking eyes!). Achieving blue requires acidic soil, aluminum sulphate or ammoniacal alum, and minimal phosphorus—excess phosphorus blocks aluminum uptake needed for bluing pigments. For reliable results, select a blue variety from the start.
Personally, as a seasoned gardener, I favor Hydrangea paniculata for its crisp white or creamy yellow blooms. Explore varieties like the pure white climbing Hydrangea petiolaris too.
Ready to plant? Dig those holes now!
oak leaf hydrangea
