I've given up. My darling wanted grass at the edge of the field and I wanted a nutrient-poor meadow so you don't have to mow so often. For three years now, I've been on my knees pulling weeds out of the blasted lawn. Nature pours out her horn of plenty of biodiversity faster than I can keep up. Every time I fill in the holes afterwards.
In autumn, I also put an early wild crocus in each hole. It looks lovely in early spring and has faded before you have to mow. This summer I decided not to fight against nature anymore just because of my husband's wish. Green is green, and when he has mowed it looks good enough. I only don't let thistles, nettles, and bindweed grow tall.
Best regards
Gabriele