During the last days I had the chance to check some of our evergreen magnolias. Till now we’ve only had some nights with frost down to -5°C. No snow on the ground. They all do very well – even no damaged leaves.
Planted on a westward facing slope with big trees giving them some light shade they are developing continuously. We do have some more crosses with M. insignis (M. sieboldii ‚Colossus‘ x insignis, M. ‚Silk Road‘ x insignis, M. changhungtana x insignis, M. yuyuanensis x insignis) doing also very well. About the other evergreens I will let you know later on.
M. insignis and M. yuyuanensis x insignis 
M. chapensis 
M. ernestii
M. chapensis 
M. ernestii
M. conifera var. chingii 
M. sp. from Kunming 
M. changhungtana
M. conifera var. chingii 
M. sp. from Kunming
several M. virginiana 
M. cavaleriei var. platypetala