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Sep 8, 2016 10:14 AM CST
|Can Hydrangea macr. Winter outside in Åland Finland|
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. http://www.aland-islands.clima...|
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~~"Leaf of Faith"
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.|
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!