Ask a Question forum: Hydrangea macrophylla. Can it winter outside in Åland

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Sep 8, 2016 10:14 AM CST
Can Hydrangea macr. Winter outside in Åland Finland
Name: Greene
Savannah, GA (Sunset 28) (Zone 8b)
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Sep 8, 2016 10:17 AM CST
I don't have an answer for you but I found a chart showing the climate in your area which may help others to give you a good answer.
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~~"Leaf of Faith"
Name: Sue
Ontario, Canada (Zone 4a)
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Sep 8, 2016 5:42 PM CST
The lowest recorded winter temperature at Mariehamn is -26 degrees F. That would be equivalent to USDA Zone 4 in years where it got that low. On that basis the answer would usually be no for Hydrangea macrophylla.

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Name: Lisa Olson
Washington DC (Zone 7a)
Sep 8, 2016 6:27 PM CST
Bit off track, but I have holidayed in Mariehamn. Lovely in summer.
Our friends, who live inland, don't have hydrangea but they do grow hellebores. Now on my mind is "Helan Gaer." Skael!

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