Tie leaves together in late fall to form a canopy over the crown in order to prevent water from settling in the crown and freezing. Crowns benefit from winter protection in USDA Zones 5 and 6. To the extent possible, locate in areas protected from wind.
Best with a full sun exposure, but tolerates some light shade in hot summer climates. Plants require sharp soil drainage, particularly in winter when root rot can be a severe problem.
Best grown in humus-rich, evenly moist, well-drained soils in full sun.
