Eschscholzia californica. Plant your very own gold rush with California’s official state flower. These delicate, golden orange blooms will add a ray of sunshine to your garden and help to attract pollinators. The California Poppy is a heat-loving flower that is easily self-seeded from season to season. Perfect for informal beds, country gardens, or borders. California Poppies will put on a show for around 10 days before it heads into dormancy for the next season.