Picture posting is enabled for all :)
Not to late to take cuttings, i cut bits off and put them into water and the root really fast.
my brugmansia is about 8ft high, with 20+ flowers on it. it's in a 100litre pot, and is kept in unheated greenhouse over-winter.you could try wrapping the stem in fleece overwinter if your one is in the ground. ;)
A 100ltr pot ! How on earth do you move it? It must weigh a ton, let alone be to big to get through the greenhouse door.Can they be left outside ?