Most wildflowers are grown from seeds sown in the fall, though some species can be found in containers at nurseries in spring. A few of the selections recommended here are cultivated annuals, not true wildflowers.
Start your wildflower garden by seeding small areas to gain experience and to see what you like. Select several species that will bloom at the same time, and experiment with color combinations, such as the yellow-gold of the Mexican gold poppy with the purple of owl's clover. Over the years a wildflower garden will take on its own character as plants reseed, spread, and mature.