Elsewhere, broadcast seed as soon as the ground has dried out. Indoor sowings in peat pots are also successful. Germaination is rapid at about 70 degrees F. A partly shaded site is best. Soil should be moist and friable, enriched with plenty of organic matter. Thin plants to 6-12 inches apart.
Blooms are short-lived.
Other varieties are lighter and bright blue in color. An excellent companion for spring bulbs at the front of the border. Also good for containers and window boxes and in rock gardens. Not suitable as cut flowers. Glistening white pointed petals open to reveal a startling bright blue base.