|Very compact and uniform. Leaves medium green and ovate, to 3 inches long. Flowers are available in a multitude of colors, from white to pinks to blues. Though commonly thought of as a summer annual, works very well as a fall annual in many warmer areas too. Good disease resistance and weather tolerance aided by smaller flowers.
'Blue Danube' is a compact and free-flowering Grandiflora cultivar, producing large, double, lavender-blue flowers with darker blue veins.