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Laying turf after killing weeds

Hi,
I have sprayed the whole of my small garden with weedkiller to kill all the weeds. After the weeds die, can I just leave them there whilst I lay the new turf or do I have to pull them all up first?
Thanks

Posts

  • Simone_in_WiltshireSimone_in_Wiltshire Posts: 1,073
    edited August 2022
    @johndoe It depends what soil you have, but I always recommend to dig weeds out rather than using weedkillers or suppressing materials. Where no roots, there no plant (applies for all plants not just weeds). Apart from that, you need to wait 6 month otherwise the weedkiller will kill the new plants/lawn.
    It's a habit of weeds to come back easily mostly because their roots are so adapted that a tiny bit will regrow fast.
    I took a fork and spate and took out everything. Just to give you an idea what time it takes on a 10x10m plot.

    Started on April 21 (2016): Heavy clay soil.



    Finished on May 14 (2016):



    I must have missed 1 creeping cinquefoil root. Being not aware of the importance, I ignored it in 2017, not knowing what it is. By 2020, 1/2 of the lawn were covered with creeping cinquefoil, and I took out the lawn completely, and removed until last year another 100 if not more creeping cinquefoil roots.
    After 2 years now, It looks like that I have eradicated the creeping cinquefoil successfully and will start now to cover blank spaces with bark in Autumn.
    I check daily what is in the beds and take out the tiniest weeds immediately.

    As Alan T. always says, "do it properly and you have no weeds for 7 years", which is true.

    I my garden.

  • floraliesfloralies Posts: 2,718
    I think we need to establish which type of weed killer @johndoe used on his garden.
  • johndoejohndoe Posts: 27
    I cleared out (most) of the previous weeds already, then i put one ton of sandy topsoil on top and levelled. I left it for a bit and all the new weeds came up probably from the new topsoil! Can't bear the thought of taking them out one by one.



    floralies said:
    I think we need to establish which type of weed killer @johndoe used on his garden.
    I used Resolva weedkiller spray. I have now sprayed it all over this new weed growth. They aready look a bit wilted after one day. I have never heard that it takes 6 weeks for the weedkiller to go away. I thought 1 or 2 weeks and then you can plant on it?
  • DovefromaboveDovefromabove Posts: 88,147
    Read the pack … there are different types of Resolva … which did you use?

    https://www.gardenhealth.com/our-brands/resolva

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





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