Worried about the predicted cold, I brought most of my potted outdoor plants into the kitchen yesterday- all except the apple tree (too heavy to move) and the Echinacea pot (frozen to the balcony floor). They started to thaw out- trickles of water making little puddles under the pots. Then I learned belatedly that being kept in a heated room is not good because the plants will come out of dormancy, start to grow again, and not be able to withstand cold properly if put outside once more.
So I shuffled them all outside again, but kept them close to the building walls, away from the windy edge. Tried to protect them as best I can. Some tucked into boxes with newspaper insulation, others towels stuffed around them. Bigger pots wrapped in bubble-wrap. Burlap blanketing as many as I could.
Unfortunately I forgot that my Avocado was right in the path of the draft from the sliding door. This morning it looks totally wilted. I moved it into a corner of the kitchen were there are no drafts, but don't know if it will recover... maybe I killed it.