Lawn brown spots help...

Discussion in 'Lawns' started by AndyG99, Jul 17, 2025.

  1. AndyG99

    AndyG99 Apprentice Gardener

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    Moved in to a new property and decided to give lawn care a go.

    First time having a large garden or attempting anything like this.

    I used landscaper pro triple action and a spreader.

    Watered in well the day after.

    Now the garden looks worse after a good few weeks.

    How do I recover from this please??

    Screenshot_20250717_120746_Chrome.jpg 20250717_114856.jpg
     
  2. Tidemark

    Tidemark Total Gardener

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    I would venture to suggest that the clue lies in the words “herbicide” and “moss killer”.
     
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    • Pete8

      Pete8 Total Gardener

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      It's not a brand I've used or even seen before, but assuming you've applied it at the right rate the dead stuff shouldn't be grass but weeds growing in the grass and any moss that was there.
      It's got plenty of nitrogen in it, so should green up your lawn noticeably.

      But whatever has happened, the dead stuff needs to be raked out, either by hand, or for a much easier life a powered scarifier.
      Once that's gone, the existing grass will spread into the bare patches and in theory you should have a lovely lawn again after a couple of months.

      PS some patches may not recover well, in which case you just need to reseed those bits
       
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      • JWK

        JWK Gardener Staff Member

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        Your lawn looks better than my established one. Some of your yellowing could be due to the heat and lack of rain. It often happens in the height of summer unless you water, I never water by the way. They do recover.
         
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        • AndyG99

          AndyG99 Apprentice Gardener

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          Is it not excessive though?

          There were weeds quite widespread, but not in all the areas.
           
        • AndyG99

          AndyG99 Apprentice Gardener

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          Was planning on an autumn scarify and aerate, then giving the lawn another treatment.

          With it being my first attempt, as a total novice, was concerned that I've created unrepairable damage

          Thanks for the reply
           
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          • AndyG99

            AndyG99 Apprentice Gardener

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            Hopefully!
            It looked better prior to this. Albeit with dandelion, buttercup, white clover etc

            Just unsure what my next steps should be.....

            Thanks
             
          • AndyG99

            AndyG99 Apprentice Gardener

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            These are from June and before the treatment

            20250611_174201.jpg 20250611_174447.jpg
             
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            • Pete8

              Pete8 Total Gardener

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              What a lovely setting!

              My lawn looked ok a few weeks ago - we've had very little rain all year and no useful rain in months.
              It now looks like -
              upload_2025-7-17_14-50-30.jpeg
               
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              • JennyJB

                JennyJB Total Gardener

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                That looks to me like a lawn that's just beginning to show the effects of drought. Mine's much more brown than that. Pete8's is lush and green by comparison. Here's mine:

                PXL_20250717_145949610.jpg

                There's nothing you can do except wait for the rain to come (unless you are allowed and can afford to use a sprinkler on it for significant periods of time - spraying a hose over it for a few minutes doesn't do any good because the water needs to get down into the soil).

                Don't put any more feed/weed stuff on it. It's supposed to be applied when the grass is dry but then watered in very well a few days later so it's not left sitting on the surface for too long, so it's not ideal to use it in a dry spell.
                 
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                • AndyG99

                  AndyG99 Apprentice Gardener

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                  I did use a sprinkler the day after for around 7 hours, so that should of been ample.

                  I'll not do anything for now then and hopefully it'll recover well.

                  Appreciate your assistance
                   
                • Matthew Adams

                  Matthew Adams Apprentice Gardener

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                  I personally try to avoid products that contain weed killer or moss killer. Especially if I don't have weeds or moss. A stand a lone fertiliser is much healthier and an organic one even better for reducing 'brown spots'. I occasionally use iron sulphate to blacken moss.
                   
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                  • AndyG99

                    AndyG99 Apprentice Gardener

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                    Thank you for the response.
                    I do have an issue with weeds and moss, just trying to get on top of it.
                    Greenthumb gave me some vague advice and an extortionate quote!!!
                     
                  • fairygirl

                    fairygirl Total Gardener

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                    Once you get proper rain @AndyG99 , it'll green up. You may find it easier to avoid any treatment next year, because you've probably got rid of lots of 'unwanted' things now. Any treatments of that type are best done in early to mid spring, when there's a better chance of it working without doing too much long term damage because the ground will be damp. A bit of scarifying in early autumn can help remove excess thatch/moss etc.
                    It depends how fussy you are about having it perfect though.

                    I'll not post a pic of my 'very green' grass - don't want to rub it in to those with brown lawns!
                     
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                    • AndyG99

                      AndyG99 Apprentice Gardener

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                      Will look to scarify and aerate in the autumn. Hoping this will remove some of the thatch and allow for some nice regrowth come next spring.

                      I'm surrounded by fields, so most likely, mine will constantly get contaminated with unwanted nasties etc

                      Thanks for the reply

                      It's all new to me, but starting to understand what is required now
                       
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