90 seeds. Oenothera missouriensis. Perennial. 
 
Missouri Evening Primrose.
 
Also known as Missouri Primrose, Ozark Sundrops and Oenothera macrocarpa.
 
Hardy in zones 4-9.
 
Height 12 inches.  Spacing 15 inches.
 
Sowing Evening Primrose Seeds: 
 
Start seeds indoors in late winter. Lightly cover the seeds with soil and refrigerate for 4 weeks (cold stratification). Or sow outdoors in early spring. Full sun.