In article ,
says...
In the summer I asked about growing canna from seed. With advice from
the group I ended up with about 10 plantlets. They are now 6 - 9
inches high. I have them on a bedroom window ledge (no greenhouse).
I've kept them only just damp. All are now brown and crispy.
I've never grown canna before, and am not sure what to do. Do the
brown leaves indicate death or is that what happens to canna in
winter?
Advice will be greatly appreciated.

Pam in Bristol

Winter die back is normal if the plants have been droughted or cold
otherwise they would still be evergreen
--
Charlie Pridham, Gardening in Cornwall
www.roselandhouse.co.uk
Holders of national collections of Clematis viticella cultivars and
Lapageria rosea