I am somewhere between zone 6 and 7 on LONG Island, NY.
I have my trees in a greenhouse I use a minimum amount of heat at night. To
prevent the temps from sustaining temps under 32*f. using a kerosene heater.
Actually I prefer to keep the above 32*, because during day temps exceed 70
sometimes. The maples are budding already and I am starting to repot this
month as I do every year. My trees seem to do well
SteveW
LI NY

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