This giant hyssop cultivar is a woody-based perennial of the mint family. Features tiny, tube-shaped, lavender-blue flowers tightly packed in rounded verticillasters (false whorls) in 4" long interrupted terminal spikes atop stiff square stems typically growing to 3′ tall. Flowers bloom freely over a long summer to early fall bloom period and are attractive to butterflies. Ovate-lanceolate leaves (to 4" long) are downy beneath and have a pleasant minty-anise fragrance. Leaves may be used in potpourris or to flavor cold drinks.