Oh this is so interesting. Even the answers I have to say No to help me define what it is I am thinking about, and how to observe and interact in this particular context.
I think i can break it down to two sort-of-related issues.
The first question is how to establish the herbaceous perennials and keep them alive from year to year.
I'm unwilling to keep animals, I'm just not that dependable. Cavies or rabbits (which I hadn't thought about) would be a much better choice than the goats I wanted but couldn't figure out how to manage. I had a very traumatic experience once killing a rabbit for meat once, and haven't considered them since. I suppose they could be pets, but I don't even keep pets.
Raised beds or containers are not the answer. I'm trying to establish self-sustaining herbaceous perennials (such as the yarrow that I excavated this morning) under and around my fruit trees and woody perennials, in order to gradually replace the dominant bulbous and rhizomatous and toxic weeds, or at least diversify the herbaceous and ground cover layers.
My favored plants are scattered around the entire yard. I'm working to find out which ones need weeding and which ones will come up through the weeds. Unfortunately, after they go dormant and get covered in sour grass and bermuda grass, I forget they exist. So I have to weed just to find out what is there. And of course, the ones I remember aren't necessarity findable. Nor do they all come up at once.
Part of the answer might be to use more tomato cages.
Part of the answer is simply to weed more. That's what I'm learning how to do. The woody perennials are visible above the weeds, and so they tend to survive neglect after I plant them. But the flowers and herbs that I plant under them get lost and shaded out. I need to learn new habits and strategies now that I have reached the ground level.
The other question is whether it's worthwhile to dig up those nasty arums that pop up by the hundreds. It's so satisfying when I get the rhizome out. And nicely mindless when I need that. But it's tedious and endless. Is it useful? Will it slow down their spread any? Is it hopeless as long as any remain? Could I just break off the tops year after year and that would eventually starve them out? And can they be fed to animals, or are they just as toxic to cuys and rabbits as to humans?