Here’s a sneaky one—- think about your rain collection system if you have one. Wherever the water might sit in a pvc pipe—- it will expand and ruin everything. Make sure rigid tanks are not full or they will freeze and blow apart. IBC tanks seem to OK, but all pipes are vulnerable:—- best to drain everything and leave the valves open for the freeze and thaw of snowmelt—- source of water you don’t think about..
Any kind of
pond pump or water pump outside must be disconnected and drained or it will burst. These might be ok if
underground, but best to think through every foot of plumbing everywhere so you don’t have major headaches next spring.
A
greenhouse will get significant condensation on inside windows, and over time might ruin any
wood the windows touch.
Canna lilies must be dug up if you want them next year. Look on the bright side—/ you can eat the bulbs If SHTF, (so I’ve read)....many
pond plants must be brought into a basement or non-freezing
greenhouse /barn if you want them too—- winter is a good time to replant these anyway....