Light: Full sun to part shade. In warmer zones, 8 and above, it will benefit placement from afternoon shade.
Soil: Prefers moist soil that drains easily. Any period of extended sogginess will not be tolerated. Soil pH affects flower color, and it will be its deepest, moodiest purple in acidic soils. Add a little aluminum sulfate if a soil test reveals that you have neutral or basic pH (7 and above).
Water: Average water needs.
Fertilizing: Nothing special required. If desired, you may apply a granular fertilizer formulated for woody plants in late winter/early spring when the soil is workable.
Pruning: Pruning is not recommended, as any cuts will affect blooming. Dead or damaged wood can be removed at any time! For damaged wood, prune about 1/4 of an inch above a set of leaves.
Other: It can be used as a cut flower! For its longest vase life, cut vertically up the stem about 2″. This will help it absorb more water.