blue cornflower centaurea cyanus on a natural green vegetable background in the garden or in the field. background for postcards

agave alpine annual aster bachelor bachelors background blooming blue botany bouquet boutonniere button centaurea centaureas centauri cineraria closeup cornflower cornflowers cyanus field fiordaliso flora flower foliage for garden green head meadow montana mountain narrowleaved natural nature perennial petal plant postcards prickly purple saver screen segetum senecio summer vegetable wallpaper wild