Not just moved outside for longer, Will. It is outside for good; rain or shine, hot or cold.
I imagine the "outside-growing time" in zone 4 won't be much more than 5mo. tops, naturally, because of the cold.
concerning the Superthrive.
drdawg (Dr. Kenneth Ramsey)
The reason it's so hard to lose weight when you get up in age is because your body and your fat have become good friends.