Cultivars
The following cultivars are similar to the species and have the same environmental requirements.

'Blaufuchs'
This perennial has vivid blue foliage.

'Elijah Blue'
This perennial has pale blue foliage.

'Seeigel'
This perennial has silvery blue foliage in a compact rounded habit.

'Golden Toupee'
This perennial has bright green to yellow foliage forming a rounded habit.