Q.Brugmansia Charles Grimaldi
Have growing in container Never before freezes and no heat Lost all leaves outer skin bark pealing off and mold is forming under neath You can peal skin/ bark off Can it be saved or what’s wrong and how do I fix I live in Texas

Certified GKH Gardening Expert
They can't tolerate a freeze so you will need to treat it for cold damage. Here is more:
https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
https://www.gardeningknowhow.com/plant-problems/environmental/how-to-treat-frozen-plants.htm
https://www.gardeningknowhow.com/ornamental/trees/brugmansia/growing-brugmansias-in-containers.htm