Posted: 18/03/2016 at 10:23
Thank you for all the responses. My plants were bought as mature and in flower, they looked good all last year and I cut off the flower spikes when they had finished then brought one (potted) into the conservatory (unheated and north facing). The one remaining in the garden I covered in a fleece jacket once weather got cold but it has died.
How is the best way to take cuttings from my surviving plant which looks a rather sorry specimen at present. I tried, unsuccessfully with side shoots last year