Trees in pots

I have two small blue spruce trees (18″ high) planted in large pots, which have been outside framing the front door(faces southwest) since spring. Will I need to winter these inside or in an unheated garage or what would be the best choice? Some winters we can get as cold as -20.

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1 Comment To "Trees in pots"

#1 Comment By Downtoearthdigs On 09/13/2015 @ 11:44 pm

You will not need to winter the trees inside.
The are winter hardy to zone 3.
Continue to water the trees into the dormancy and add a small amount of water a few times throughout the winter.

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