In most parts of New England, this has been a glorious year for hydrangea shrubs and it’s about time! The past two years has been inhospitable to these shrubs with excessively cold temperatures for long periods causing the tender buds to be killed. In the very early spring of 2016, it looked promising but unfortunately the emerging buds were hit by extreme and unexpected temperature drops which killed all the potential flowers. Many of us wondered if we would ever see those beautiful blue flowers again as they are the quintessential mainstays of our summer gardens.
Now as I drive around to visit gardens, I am amazed by the dazzling and voluptuous hydrangeas shrubs that are gracing our gardens this summer. It is gratifying and comforting that our patience over the past two years has paid off with the abundance of vivid blue, purple and pink flowers that are now so plentiful.
This beloved plant originated on the coastal and smaller islands of Japan. In Japan it is called the “flower of seven transformations” or Nanhenge because of the plant’s ability to change color based on the chemical nature of the soil. An acid soil produces a bluer flower while a soil that is more alkaline turns the flower pinker. Growers have produced a vast amount of differing hydrangeas to choose from in terms of not only color, but also sizes from massive to quite diminutive. The newer varieties also bloom continuously from July into early Autumn.
In my own garden, I have seen hydrangea flowers emerge as soft green transforming into pale blue. As the summer progressives, the pale blue turns to cobalt and vivid mauves and purples. Cooler temperatures in autumn bring on a rich burgundy, while a quick frost may turn the flowers to a tawny silver. This multitude of colors produces lovely flowers that can be cut and dried as beautiful arrangements for your home in the winter.