If you've ever grown or been around asparagus before, it has a fairly short harvest season, and the rest of the summer it makes a big bushy plant that's kind of itchy and irritating to be close to. So it seems that off on the edges somewhere might be a good place for it, somewhere you don't really have to go unless you're picking the asparagus. You might be able to grow a winter crop over the dormant
roots if your climate is amenable to that; and/or a vigorous ground cover like a winter squash up under there in the summer (which is also amenable to a one-time harvest)....