If you live in a very cold climate as I do, one hydrangea that should flourish in your yard would be the Endless Summer (Hydrangea macrophylla) variety. It is loved for it’s profuse blue flowers, but acidic soil is needed for the blue color.
The tricky part is knowing whether the flowers will bloom as pink or blue. That will depend on the acidity of your soil. If your soil has a low ph level (5.2-5.5) your flowers will be blue, but any higher and you may get a pink and blue combination or all pink blooms. The soil where I live in New Hampshire is naturally acidic, so my Endless Summer hydrangeas bloom blue.
Not every type of hydrangea shrub will like the cold winters of New England, so be sure to do your research before buying and make sure you are investing in a plant that will not die over it’s first winter in a northern garden.
The Endless Summer shrub will bloom from new growth (as well as old) in the Spring, so while the shrub sits buried under 2 feet of snow for months you won’t have to worry if the stems break. It will come back. They thrive in planting zones 4-9 so they can take the heat too!
Thank you for sharing!
Hydrangeas Blue 
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