Easily grown in average, medium, well-drained soils in full sun. Prefers fertile, alkaline, somewhat gritty loams with good drainage. Tolerates some part afternoon shade, particularly in hot summer climates. Plants tend to die out in the center if drainage is not superior. Division and/or reseeding may be necessary every 2-3 years. Prompt removal of spent flowers may prolong bloom period, but is quite labor intensive. For larger plantings, it is perhaps more practical to simply shear off spent flowers after bloom. Shearing plants after bloom but before seed sets will prevent any unwanted self-seeding, will trim the foliage and may promote a possible sparse re-bloom in fall. Plants are easily grown from seed and may self-seed in optimum growing conditions.