Achillea millefolium 'Cassis' has cherry-red flowers in good sized, flat heads. The flowers top off 24 inch tall stems above ferny textured foliage. This selection was developed to bloom in only a few months from sowing. Can also be used as an annual planting in full sun. Best blooming plants produced in soils that are low in nitrogen. Nice red form and a good choice for mass planting or used in pots;for a mass effect - plant in groups of seven plants with each spaced out 12 inches apart.