Q.Will A Blackthorn Bush Survive A Winter In Zone 6?
The blackthorn would be somewhat protected under larger bushes on south side of house

GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 23, 2021
Blackthorn is hardy to zone 4 so yours should be fine. Here is more information:
https://www.gardeningknowhow.com/ornamental/trees/blackthorn/growing-a-blackthorn-tree.htm
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