The nice thing about wildflowers is that they grow just about anywhere, and you can start from seed. There are wildflower seed mixes for wet and sunny areas, dry and shady area and everything in between. The one thing about starting anything from seed is that you need to use lots of seed. If you decide to DIY a meadow, I’d suggest buying twice the amount of seed you think you need. More seed means more chances for lots of germination. Too little seed could mean lots of weeds and unsightliness.
Anyhow, the suburban flower meadow turned out great. It did take its old sweet time to start growing.