Artemisia 'Powis Castle'

Common name(s): Powis Castle artemisia

Description: perennial; a hybrid artemisia presumed to be the product of a cross between A. arborescens and A. absinthum. Selected by British gardener A. J. Hancock in the late 1960s and then introduced in 1972 by the National Trust's Powis Castle in Wales where it was used to line the walls and terraces surrounding the castle. Fine feathery, aromatic silver foliage forms a tidy, compact mound. Stays evergreen in all but the severest of winters in which it will freeze to the rootstock and put on new growth in spring. Can be pruned relentlessly in spring to refresh form and foliage.

Height: to 3 ft. Spread: to 6 ft.

Position: full sun and well-draining soil

Uses: ornamental

Winter Hardiness: to 0 F and below