I have spaces in my yard that look like that, but it takes soooo many hours of meticulous hand weeding to encourage and protect the wildflowers and discourage the goat head burr, fox tails, storks bill and burr clover. And forget hiring anyone to help, professionals call them all weeds will only eradicate the whole lot (which would start it back to the beginning since those nasty ones are the first to take over when the earth is bared). Every year there are few more flowers and friendly "weeds" and few less horrible thorny noxious weeds, but it's been a process over about 8 years and it's not finished and probably never will be.
The easiest to maintain part of my yard is my "no mow" native fescue lawn, that would never be allowed in an HOA and you can't really walk on it, but it houses a billion bugs and the birds and spiders and cats love it.