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  • #1

    new to polytunnels, Help

    Hi all, decided this year to try a polytunnel, after no success the past 3 years with the plastic greenhouses,and I'm having some problems, my seedlings come up wonderful then turn brown, and then start shooting off stunted growths? i give them enough water to make sure the compost is moist, and baby bio but they all get to a certain stage and die any help would be much appreciated as i would really like my cucumbers and tomatoes to be successful this year, this is the third lot of seedlings I have put in the tunnel this year and I don't think I'll have enough time to try again if this lot fails
    Thanks
    Jono
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  • #2
    Whereabouts are you jono? And do you have a maximum/minimum thermometer in there, so that you can check how cold it's getting overnight? I suspect that it's the cold which is killing your seedlings, they need to be kept to an absolute minimum of 5c. My tomatoes are still being covered with a double layer of horticultural fleece overnight, and even then I've lost a couple.

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    • #3
      Originally posted by SarzWix View Post
      Whereabouts are you jono? And do you have a maximum/minimum thermometer in there, so that you can check how cold it's getting overnight? I suspect that it's the cold which is killing your seedlings, they need to be kept to an absolute minimum of 5c. My tomatoes are still being covered with a double layer of horticultural fleece overnight, and even then I've lost a couple.
      I live in Wales SA18 area, I don't have a thermometer we have had some real chilly nights, I'll get a thermometer and try that, Thanks

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      • #4
        Originally posted by jono83 View Post
        I live in Wales SA18 area, I don't have a thermometer we have had some real chilly nights, I'll get a thermometer and try that, Thanks
        Water less and fleece up. SA67 (Pembs) still only making 6 and 7C at night. See Two Sheds' video on watering. Seedlings don't need feeding for 4 to 5 weeks if in potting compost as it has feed in it.
        "A life lived in fear is a life half lived."

        PS. I just don't have enough time to say hello to everyone as they join so please take this as a delighted to see you here!

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        • #5
          Originally posted by marchogaeth View Post
          Water less and fleece up. SA67 (Pembs) still only making 6 and 7C at night. See Two Sheds' video on watering. Seedlings don't need feeding for 4 to 5 weeks if in potting compost as it has feed in it.
          And I certainly wouldn't use Baby Bio - that is food for house plants.

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          • #6
            In case any one hasn't said it yet - croeso i'r Vine. It's worth going to the Introductions Forum where you can tell people a bit more about your gardening and alsocompleting your profile so people know where you are on all your posts - saves time.
            "A life lived in fear is a life half lived."

            PS. I just don't have enough time to say hello to everyone as they join so please take this as a delighted to see you here!

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            • #7
              I would say also make sure there is enough ventilation in the day time when it's warm enough, which it should be now.

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