It better then summer weather. Proper GH storage is about freezing anyways.
SB
Yes, I agree better than summer, but you don't want it to freeze. Wouldn't oct-nov or march-april be optimal, i.e. when the temp is like 32-50 deg F?
REPEATED freeze-thaw cycles is detrimental. Doubtful that the vials themselves will be exposed to the elements...
Still kind of risky, no? They will definitely be exposed to the cold temp for some period of time--how much i don't know.
Still kind of risky, no? They will definitely be exposed to the cold temp for some period of time--how much i don't know.