What category does a Frosty cherry fall under? I do not know how or when to prune it.
Perhaps you could ask the place of purchase about this tree. I find no information on either edible or ornamental cherry named "Frosty".
I saw some Frosty Cherry hydrangeas for sale on Michigan Bulb and Spring Hill. Neither site offers much information on them and I can't seem to find any online. Do you know what type it is? I would love more specifics if you have any. Thanks!
You are correct in that there is little information out there on this variety.
Slow growing is about the most I have been able to find.
I would contact Michigan Bulb and Spring Hill customer service department.
There is likely an email or phone number to call.