500 seeds. Penstemon palmeri. Perennial. 
 
Also known as Palmer's Beardtongue. Hardy in zones 4-9.
 
Height 3-4 feet. Spacing 15 inches.
 
Sowing Penstemon palmeri Seeds
 
Start seeds indoors in late winter. Barely cover the seeds with soil, then refrigerate for 6 weeks. Full sun.
 
Photo courtesy of Diane's Flower Seeds