1200 seeds. Cheiranthus allionii. Short-lived Perennial.
 
Siberian Wallflower. Also known as Erysimum x marshallii.
 
Height 15 inches.
 
Hardy perennial in zones 3-9.
 
Sowing Cheiranthus allionii Seeds:
 
Sow seeds outdoors in spring or fall. Or start indoors 6 weeks before the last frost date. Barely cover the seeds with soil. Full sun to part shade.
 
Photo courtesy of Diane's Flower Seeds