[shaz_mum_of_2]

how does couch grass respond to being smothered with cardboard?

We have been digging it out and are nearly ready for planting winter brassicas, we did wonder obout a thick layer of card followed by some compost as per no dig or lasagne gardening to stop it finding its way up but worried after reading the downfall of using carpet

It will laugh in your face, the roots will go through almost anything it wants too, I have had through the whole of a spud before, sorry but the only way to is to dig it all out, once  you have the bulk out it will get easier, as soon as it appears dig it out, the ground will be softer so easier to lift.

we have almost dug it out i was more concerned with regrowth

 a 20ft by 10ft bed has taken 10 man hours of digging not bad for a woman with a bad shoulder and a man with a bad back