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Autumn sowing up North

ph1109ph1109 Posts: 32
I wish there was a forum category for Beginners 🙂 which I am

Read a fair bit about autumn sowing of hardy annuals direct and under cover, and I have everything here to give it a go. The only thing that I am not sure about... I live up North. Gales from autumn on, the weather can be rough.

With spring sowing you need to wait a week or two, that makes sense, as the soil will be later to warm up. But what with autumn sowing, maybe you need to sow a week or two *before* the rest of the country? Eg August instead of September? While it is still reasonably mild.

Also instructions never say what to do with the new seedlings to overwinter them. Can they just be planted out to overwinter in the garden? Or can I keep them in an unheated room in my house? I have no greenhouse and no cold frame ( however I think I could lay my hand on a fishbox with a transparant sheet?)

The seeds which I have should al be easy.
DIRECT calendula, californian poppy, cornflower, love in a mist, viola
UNDER COVER scabiosa, camille, euphorbia, parsley, viola

Very excited about this new sowing project, want to be prepared and do a good job !!! 🤗🤔
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  • punkdocpunkdoc Posts: 15,039
    Unless you can provide good light for autumn sown seeds, there is very little point sowing them.
    None of the varieties you mention need heat, but they all need good light.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • FairygirlFairygirl Posts: 55,117
    I don't know what camille is [did you mean camellia?] but out of all the others, I wouldn't sow any in autumn. Too wet, dark and cold here. 
    Things like cornflower and nigella for example, are better sown direct in late spring/early summer. Ground is more favourable then, as well as temps. 
    For any plant - you need to look at how and when it naturally reproduces. That gives you an idea of when to sow. We often get asked on the forum about foxgloves for example. People want to keep them in greenhouses which is totally unnecessary. They're wild plants which grow in all sorts of inhospitable conditions.  :)

    No small seedling planted out in the ground is going to do well over winter, so even if you have any, you need a cold frame/greenhouse or similar to over winter them. Light, not heat, as @punkdoc says. 
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • ph1109ph1109 Posts: 32
    Oh! Are you saying that you need to be in a region where the days are longer than here up North?
    In the depths of the winter there is maybe only 6 hours or so of daylight.
    Will that make it impossible to do any autumn sowing? How disappointing!
    Never thought of this...
  • FairygirlFairygirl Posts: 55,117
    What exactly do you mean by 'up north'? 
    We get about 6 hours here.
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • punkdocpunkdoc Posts: 15,039
    I sow quite a lot of annuals in the autumn, but I leave them in a cold greenhouse, this means I get plants that are ready to plant out earlier than if I sowed them in spring.
    Direct sowing does not work for me, cold, wet and to many pigeons.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • ph1109ph1109 Posts: 32
    Fairygirl, I live in the Northern Isles. North mainland of Shetland. 
    OK that is maybe a bit les than 6 hours of daylight in winter, now that I think of it. More like 5. But by then the seeds (seedlings?) should be in a semi dormant state, right?
    Do you do autumn sowing of hardy annuals?

    punkdoc, it will be very wet and cold here too.
    Can you sow anything inside, even if the instructions are to sow direct in the garden?

  • FairygirlFairygirl Posts: 55,117
    Ah - I wondered.  :)
    I rarely sow any autumn seeds here. Pointless. I don't do a lot of annuals anyway, but I do sweet peas, but it's rarely worth sowing in autumn. It's never very favourable for planting out in spring anyway, so I usually just do them in April. I did some last year, and we had an abnormally hot April, so I actually had sweet peas flowering in late June for the first time ever. 
    I don't think it's worth doing any in autumn where you are, unless you have a cold frame of some kind. You can easily make a basic one with bricks, blocks etc, and a bit of perspex or polycarbonate. You'd still need to wait for conditions to be favourable enough to plant out in spring, and you'll have to be prepared for some failures. 
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • punkdocpunkdoc Posts: 15,039
    I do sow a lot indoors, but a window sill will not provide enough light in winter.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • ph1109ph1109 Posts: 32
    Oh well this is disappointing. 
    I am very new to gardening, you see.

    If I would sow them now in modules on my window sill, and then later pot them on and move them to the window sill of an unheated room - would that be too dark for them? Then hopefully wait until June to plant them in the garden?

    Yes I could probably get a fishbox and use a perspex sheet as a lid. I could use that after keeping them in the unheated room and before moving them into the garden?


  • ph1109ph1109 Posts: 32
    OK well forget my last message, as punkdoc has answered it while I was writing my question: the windowsill will be too dark in winter...

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