Easily grown in average, medium, well-drained soils in full sun to part shade. Pinching back stems in late spring will lower overall plant height, but will also delay bloom onset. Not reliably winter hardy throughout USDA Zones 5 and 6A where it may be advisable to grow plants in protected locations and leave spent flowering stems in place over winter. A light winter mulch will also help protect crowns. Cut stems to the ground in early spring before new growth appears. Wet soils in winter can be fatal.