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Author Topic: What to do with raised beds full of (couch?) grass!!!  (Read 5103 times)


  • Joined Jun 2013
  • South Wales .Carmarthenshire. SA18
Re: What to do with raised beds full of (couch?) grass!!!
« Reply #15 on: February 15, 2017, 08:02:34 pm »
Thanks PK - have a lot of jobs on our hands.
Seeing as you haven't said organic yourself...

Take the plants you want to keep out. Cut what's left , rake it off,  burn it when dry to give you potash.
When you have 3 inches of regrowth give it two doses of max strength " Round up " five days apart ,  the plants are very vulnerable to it at ths stage .
 leave it three weeks then dig the plot  .

 Couch grass can split hair line cracks in concrete to wreck the concrete in a few years , It can go down 2 mtrs or more , travel like bamboo underground for a long way before it re emerges .

 If you are lucky you can try mulching with a five or more inch thick layer every five months in the main growing season with a very light water retentive  airy mulch in the hope that the couch comes up & grows in them mulch .

Giving the mulch regular feeds of liquid feed helps it do this . Then when it's poking through about 2 inches tall you carefully pull out all the greenery & runners , as soon as you see new growth of couch pull it out.

Keep doing that for five of six years & you just might weaken it enough to kill it off .
Strong belief , triggers the mind to find the way ... Dyslexia just makes it that bit more amusing & interesting

farmers wife

  • Joined Jul 2009
  • SE Wales
Re: What to do with raised beds full of (couch?) grass!!!
« Reply #16 on: February 15, 2017, 08:53:51 pm »
layer with mulch and block light.  All my beds are covered in layers of cardboard and compost.  Anything left will be pulled up.  Serious problems I would cover for a longer term to break the cycle.


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