This attractive herbaceous perennial is in full flower in the Autumn Garden.
The genus Agastache is one of over 200 genera within the mint family, Lamiaceae. Containing approximately 30 species from dry terrain in China, Japan, the United States of America and Mexico all members of the genus have aromatic foliage, and square stems typical of members of the mint family. ‘Blackadder’ bears vertical spikes of intensely coloured violet-blue, tubular, two-lipped flowers. The serrated leaves emit an aniseed scent when crushed. This cultivar reaches 90cm in height and is a welcome addition to a herbaceous or mixed planting, producing flowers from July to September, which are highly attractive to a range of pollinators. In the garden it requires a sunny position and well-drained soil.