Artemisia can be shrubs, perennials or annuals, evergreen or deciduous, with usually grey, aromatic, often divided foliage and rather insignificant flower-heads
'Lambrook Mist' is an erect, woody-based perennial to 1m tall, with aromatic silvery-grey leaves to 15cm long, finely divided into very slender lobes, and slender sprays of small, dull yellow flower heads in late summer