Canna: Over-wintering.

This is my first time growing a Canna and I'm delighted with it. It is in a pot on the south Dorset coast against a south facing wall. I cannot move it so I have enveloped it in horticultural fleece. Should I have cut it down and if so where to?
Thank you in anticipation.
0
Posts
Make sure it's off the ground as well to help the drainage. I'm about to move mine round into a sheltered corner and will use two windows I got from a friend as a temporary shelter for it as we'll get a lot of winter rain. Like yours - it's too big to bring indoors.
I live in west central Scotland - not where that photo is...
Well spotted Verdun
! I'm getting carried away trying to grow plants that I couldn't when I lived in the Peak District.
What does cutting back achieve?
I can't protect it with anything other than the fleece however thanks to Fairygirl I shall put pot feet under it and try to keep it dry.
Thanks folks. My first time asking a question on the forum...LOVE IT!
Thought I'd update you kind gardeners on my Canna. I protected it with fleece and raised it up on pot feet last Winter. After the un-veiling it produced more stems and flower heads.
I was so proud that I posted it on Facebook for my friends... how sad am I?