'Milly Rock' puts on a show with deep red flowers with contrasting yellow centers. As the flowers mature they will fade to a light pink color. A wonderful plant a pollinators garden. A long bloom time from summer into fall.Fern like foliage produces strong stems for blooms to sit on making it a nice option for a cut flower. Growing too about 10-12 inches tall and 14-16 inches wide this perennial prefers full sun and isn't too picky about soil as long as its well drained. Drought tolerant once established. Achillea spreads easily and can be divided every few years.