My two plumies are still staying outdoors. I used to bring them in, but I really lack space this time. So far overnight temps hovering in the 35F to 45F range and we still get 55F to 60F daytime high. Has been dropping leaves as expected but otherwise trunk staying firm. We are getting intermittent rains this time, a bit dicey but as long as temps do not go to the 20F, I think they will endure it. But just in case if there is such frosty forecast sometime in January, I may try to cover them up with burlap, but for now just letting them cold harden outdoors.
That is the sunniest corner of my garden, and with the city trees going deciduous too, more light and warmth will hopefully be given to my Plumies during daytime.