We're in 7a. The sunroom, as I call it, is heated, with the temp turned down so the plants don't require lots of water. We had a lot of cold weather last winter. The thing I fear most is a power outage.
Any day you wake up on the sunny side of the grass is a good day.
"The moving hand writes and having writ moves on. Neither all thy piety nor all thy wit can lure it back to cancel half a line nor all thy tears wash out a word of it." The Rubiyat by Omar Khayyam