This German variety was selected for its especially blue foliage and improved resistance to rust in humid regions. Plants form a well-behaved clump of bright silvery-blue leaves, with taller arching stems of flowers appearing in early summer.
Non-spreading in habit, this will remain evergreen in mild winter regions. Requires good drainage, especially in warm summer regions. Clumps may be easily divided in spring. In cold regions the foliage sometimes needs to be tidied up with scissors in spring, but quickly regrows.