50-60 Days to maturity. Eschscholzia californica. Formula Mix California Poppy Seeds. Non-GMO, annual. Formula Mix California poppies are a serious favorite of pollinators like honey bees. These easy-to-grow flowers are charming when planted en masse but thrive just as readily in containers and other applications. Colorful and full, Formula Mix California Poppies are perfect for livening up a variety of gardens with a spread of color. One ounce covers about 250 square feet of bare soil. ~18,500 seeds/oz.