Here in Winnipeg, it start to be chilly :
In my garage (poorly insulated and unheated) it's -15°C...
When my plants will be old enough to pass the winter there, I'll have to do someting about it.
especially in January / February, expect -40 ° for short periods.
For now, my adult Pings are fully dormant inside a box in the garage.
I hope everything will be fine this winter.
What kind of heating do you use ? Not too costy ?