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Canna: over wintering.

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Posts

  • Hostafan1Hostafan1 Posts: 34,889
    those in my undeated tunned still get well over a metre tall before the weather is suitable for them going back outside
    Devon.
  • strelitzia32strelitzia32 Posts: 758
    Related question: do you cut them down at the end of the season, or do you do it in spring?

    Looks like @punkdoc and I cut them down in Autumn, and @Dovefromabove does it in spring. I think I tried it in spring once, but the stems were so tough after hardening in the winter...

    What does everyone else do?
  • Hostafan1Hostafan1 Posts: 34,889
    I just leave mine to collapse. I know where they are that way, and it  gives a bit of protection
    Devon.
  • DovefromaboveDovefromabove Posts: 88,147
    @strelitzia32 in the dark and dry, mine just dies back over the winter ... I remove the leaves as they die and there’s usually none left by March. 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • PosyPosy Posts: 3,601
    Thank you all for these helpful tips. 
  • punkdocpunkdoc Posts: 15,039
    I don't have room to store 20ish Cannas with their foliage on, as mine go in a porch, because the greenhouse can get too cold.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • InglezinhoInglezinho Posts: 568
    Find the coolest place within the house that gets some sun and keep them in growth: 10 deg C is perfectly adequate. They will probably stop flowering but they make superb foliage plants, especially the purple-leaved and variegated  ones. One small word of warning. In dry air they are very susceptible to spider mites. On mild days open the windows and/or mist spray . As soon as the weather warms up again, put them into the greenhouse. Unfortunately an unheated greenhouse in January is not enough for this method.
    Everyone likes butterflies. Nobody likes caterpillars.
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