I have attempted to over winter three plants...Two have gone completely brown.
Have they ceased to be ???
Pictures might help.
Yes, they are now ex-plants.
Brown stems = dead plants.
Pull them and start over.
The only reason that they are still in the pot is that they have been nailed there.
DMF: thank you! Brought back great memories. Definitely ex-plants.
Here is a link that might be useful: Dead parrot