Wheat Fields Used To Look Like This
Apparently, before intensive farming, cereal fields were a mass of flowers, growing between the stalks of the crop. Blue Cornflowers, Yellow Corn Marigold and red Poppies create a riot of primary colours.
Ironically, if you want the same effect on your lawn you need to get out the weedkiller (see www.hyndburnbc.gov.uk/site/scripts/documents_info.php?doc.... Wildflowers grow in meadows where strong species, such as grasses, have to be controlled.
This picture was taken at the Millenium Seed Bank, Wakehurst Place, West Sussex where, outside there are a series of habitat beds, like this one.