Japanese Maple overwinter?
I know it is too early to think about overwintering, but want to get prepared. I got the following JPs this spring, they were in pots with diameter 6 and 1/4 inches. (Can you tell how many gallons the pot is from the diameter?) I potted them up to pots with diameter 8 and 1/2 inches. They were not pot bound in the original pot but I potted them up anyway. (Did not want to bother them too much to pot them down again). The tree are around 2 feet tall. Should I bring them in an attached garage/unheated basement or bury the pot into ground outside. (I am a little concerned they are too young for our brutal winter outside.) Also, are they true to the names? Thanks.