I've got a two foot deep trench along one side of my plot where there used to be an old fence, and have been filling it with the couch-infested topsoil from the rest of the plot, to get it all levelled.
My plan is to chuck manure and compost on top, then put weed membrane over it, and leave it til the couch rots down (its been Roundupped a couple of times, but some of it survived) and grow throught the plastic.
Other than courgettes/squash, what I could grow? There is a trellis fence running up that side of the plot and it would be a shame not to use it - would beans and peas work?