Our lawn-slash-pasture was decimated last year by the Summer drought and a hard-freezing Winter. There really wasn't much left but a few straggling weeds. I had plans to reseed with a pasture Bermuda (forage greens for the geese & chickens), plus native grass on the edges, but lo and behold: Wildflowers started popping up in profusion, in quantities never seen before! I'm guessing the chickens, in their foraging last year, "deposited" the wildflower seeds and the wet Spring did the rest.
As long as there are blooming wildflowers, there'll be no mowing on this property. Let the great re-seeding begin!
[pic: not a wildflower, but a zinnia from the garden nursery where I work.]