Last year I cleared a patch of bindweed, docks and couch grass thinking I'd plant asparagus there this spring. I dug deeply, dug in very rotted manure, then at the end of winter made a raised bed and added sand. But eventually I took advice from some of you people, and decided I'd be over-confident if I assumed I'd got all the couch grass and bindweed out first go. So I'm waiting another year.
So far the raised bed is looking lovely, and sadly empty. But I'm wondering, what should I do now to prepare it for next year and to properly eliminate all the couch grass and bindweed. I'm reluctant to climb over it to dig it unless I need to, since it's so nice and light and fluffy.
Should I wait to watch what comes up? or cover it with plastic? or with that black fabric that lets the rain in?
Any advice welcome: having got this far I want it to be perfect!