150 seeds. Alyssum montanum. Perennial. 
 
Creeping Basket of Gold.
 
Height 5 inches. Spacing 8 inches.
 
Sowing Alyssum Seeds
 
Sow seeds outdoors in late spring. Or start indoors 6 weeks before the last frost date. Barely cover the seeds with soil. Full sun.
 
Photo courtesy of Diane's Flower Seeds