This is a selection from Zillmer Pflanzen in Uchte, Germany. It is similar to 'East Friesland' but with two distinct differences: a rigidly upright habit and dark purple flower stems which accentuate the bright violet-blue flowers. They are great in fresh bouquets. The leaves are aromatic when crushed.
Height: 24-30"
Spread: 15-18"
Exposure: Full Sun
Zone: 4-9