A long-flowering cultivar, 'Black Adder' produces strong, bottlebrush-like stalks of light violet blue flowers which emerge from darker purple buds. It starts to bloom in midsummer and continues until early fall. Use this perennial to provide color in the garden late in the season when many other plants are finished. Its foliage smells distinctly like black licorice when crushed, thus its common name, Anise Hyssop.
forming deciduous perennial with smokey-lilac flowers opening from dark purple buds over a long period from July to October. Approx. 1m tall. Fantastic at attracting bees and butterflies. Best in sun in a well-drained, fertile soil.
This plant will NOT tolerate wet soil, especially in winter. Native to the southwest US and Mexico, it is naturally heat and drought tolerant.