I live in the UK and am looking to buy a house that has a "lawn" that is almost entirely comprised of extremely matted couch grass. I plan to fix this up but I'm not sure how much preparation is necessary to ensure that the nasty couch grass is banished.
I'm going to start by using glyphosate to get rid of the couch grass, but I'm not sure what's best to do after that. Is it sufficient after the couch grass is dead, to either reseed the soil with a lawn grass; or just get turf (sod) to lay on top of the bare soil?
Should I instead fork out all the remaining couch grass roots to ensure it doesn't come back, and/or get scrape off and get rid of the top layer of couch-contaminated soil, before I reseed or re-turf?