Lady in Red is a showy Mexican native with whorls of bright red flowers forming spikes on square stems. The flowers are followed by tiny brown seeds hidden in the calyces. It tolerates drought (and clay soil), and will flower more abundantly with watering during dry spells. Reseeds impressively, especially in gravel beds. 
Direct sow after frost or start indoors 6-8 weeks earlier planting seeds just below surface.  Germinates in 2-3 weeks.