yes cut back the older shoots, but leave decent newer ones on to
photosynthesize in the spring sunshine and get a head start, cannas and
gingers both similar in growth patterns, obviously harden off in May or you
will get scorch.

"Charlie Pridham" wrote in message
...
Had several new ones last year which I brought in for the winter (until I
have bulked them up and can risk them out) Thing is they have not died
back
as I expected, should I cut them down anyway or leave the new unflowered
shoots and only remove the old?

--
Charlie, gardening in Cornwall.
http://www.roselandhouse.co.uk
Holders of National Plant Collection of Clematis viticella (cvs)