25 seeds. Aethionema grandiflorum. Perennial in zones 5-8. 
 
Aethionema grandiflorum is a short, mounding perennial with lilac-pink flowers and blue-green leaves. It is drought and alkaline soil tolerant. It is a favorite for rock gardens. It needs well-drained soil to overwinter. Also known as Persian Stonecress.
 
Height 10 inches. Spacing 12 inches.
 
Sowing Aethionema grandiflorum Seeds:
 
Start seeds indoors in late winter. Barely cover the seeds with soil, then refrigerate for 3 weeks. Full sun. Well-drained soil.