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Potted dahlias

Penny19Penny19 Posts: 50
I have a bishop of llandaff in a pot.  Do i need to take it ouf the pot or will it overwinter as is in a shed?

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  • punkdocpunkdoc Sheffield, Derbyshire border.Posts: 9,727
    Depends how cold the shed gets.
    Southern trees bear a strange fruit
    Blood on the leaves and blood at the root
  • Penny19Penny19 Posts: 50
    I live in wiltshire
  • fidgetbonesfidgetbones Posts: 15,331
    The point is to stop the tuber freezing. Dry compost will insulate it,but may dry it out too much. I pack mine in old tomato compost, and keep it almost dry, so the tuber doesn't shrivel, but not so wet it will rot. If you can pack enough insulation around it, it could be OK. The ideal place is a cellar at about 5C minimum.
    You don't stop doing new things because you get old, you get old because you stop doing new things. <3
  • Penny19Penny19 Posts: 50
    But you take it out of the pot and clean off the compost it's been growing in??
  • JennyJJennyJ DoncasterPosts: 4,339
    I think the idea of taking it out of the pot and cleaning it off is partly to make sure it isn't too wet (a plastic pot will retain any moisture that's there if the plant isn't growing and the temperature is cool), and partly so that you can check for and remove any damaged/rotting sections of tuber that could rot away over the winter.  I must admit I don't fuss with mine - mostly they stay in the ground with a heap of shredded prunings over the top (but I have sandy well-drained soil so even though I'm further north and east than you, they do OK).
  • fidgetbonesfidgetbones Posts: 15,331
    I lift mine, and then pack them in a pot with old compost around them.This is more to protect the tuber and give insulation.  If they are already in compost, I would just let them dry out somewhat so they don't rot.
    You don't stop doing new things because you get old, you get old because you stop doing new things. <3
  • Hostafan1Hostafan1 Posts: 29,045
    I dig mine up and leave the soil which sticks to the tubers. I don't rinse it off, or shake them dry . I then just sit them next to each other in a bed in the polytunnel and chuck some compost over any big gaps where tubers are showing. I just let them dry out  , or not, and leave them to their own devices until they start to grow in Spring.
    I don't pot them on whilst dormant to "start the off" . It's first come first served.
    When I see signs of life, I pot them on, not before.
    Devon.
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