Purple emperor grows to a height of about 15 inches and spreads one to two feet across. As with other sedum it prefers full sun and well drained soils. The dark foliage which appears almost black contrasts well in the summer with the pinkish, purple blooms. The butterflies find this plant a great resting spot.
There is no need to deadhead. Leave spent flowers or cut them for dried arrangements; cut stems down in spring as new growth starts.