I'd be grateful to hear views. My non-expert instinct is that wildflowers mostly need dry sunny poor soils to thrive? Not wet shady almost-woodlandy clay soils (which is what we have)
But DH would love to have a wildflower meadow and I said I would investigate. Saw a marvellous wildflower roundabout yesterday - it was utterly beautiful. So much nicer than ranks of bedding plants.