This is all great to know. There is so much to learn! Typically, even when we get hard freeze warnings, I won't have any plant damage in the garden. (Maybe some of the more delicate annuals.) It's usually only if we have those crazy polar vortex things come through, with extended cold and wind. I am thinking we are in for a very southern winter this year, which means capri pants and light jackets. I think if that's the case, all will be well. As I've mentioned before, my neighbor's pond goes year round with no special care -- and now she doesn't even have aeration. I wouldn't be brave enough to risk it, but her pond is pretty fascinating in it's balance.