Today I pulled the plant out of its tent to photograph its flowers and cut away masses of unhealthy looking foliage. What I have left looks pretty good so it has lived to survive another day. It seems to know to produce flowers every time I get ready to discard it, helping to save itself from the dustbin.
I know how to grow this plant; it would like a southern exposure with adequate humidity; watered before it gets totally dry and leave it in the same space without moving it. Unfortunately I can’t provide those conditions:-(