Agastache 'Golden Jubilee'
Also known as Korean Mint, both the foliage and flowers have a liquorice fragrance, and the flowers are edible and perfect for both salads and cakes.
Agastaches are hardy summer flowering perennials. Plant in full sun in a well drained soil. Drought tolerant once established, though will benefit from supplementary watering during extended dry periods. Deadhead regularly to prolong flowering and prune back to a low mound in winter or early spring.