Mine look similar to yours, but I am a little more selective
I have lots of violets, daisies, some pearlwort, the odd dandelion, Welsh poppies, forget me nots, Herb Robert or cow parsley beside the walls, but I draw the line at most taller weeds and ground elder, the bane of my life.
I love the way it looks but my daughter would clear the lot if she got the chance, she likes it tidy. If I were you though, I would get shot of that one that looks like elder before it got too big to remove!
One long side of my back garden (the west facing fence) is mostlyw eeds and self-sown things and that one delphinium. I don't have to feel guilty about the fertilised within an inch of their lives 80-odd roses and other cultivated plants on the other three sides of the garden.
It would give a lot of people conniptions... kinda gives me conniptions, and I sometimes want to turn it back into a "real" flower bed... but the insects definitely like it and this is the only part of the garden I have seen hedgehogs in (last summer). I stopped pulling up nettles from here after @Dovefromabove mentioned that certain butterflies need them to lay eggs. And I *think* I saw blackbirds eating the sticky weed, too (?).
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The elder will get a trim in the next few weeks 😮
It would give a lot of people conniptions... kinda gives me conniptions, and I sometimes want to turn it back into a "real" flower bed... but the insects definitely like it and this is the only part of the garden I have seen hedgehogs in (last summer). I stopped pulling up nettles from here after @Dovefromabove mentioned that certain butterflies need them to lay eggs. And I *think* I saw blackbirds eating the sticky weed, too (?).