Silver Kings is vigorous but can be extremely useful in places where all else fails, spots in full sun all day, on sunny free-draining slopes. The plant will quickly form a clump of fragrant silvery leaves that white on the underside and covered with small hairs that protect them from excessive moisture loss due to evaporation. Small white insignificant flowers follow in the summer. If it becomes to leggy or starts collapsing under its own weight, simply cut down by 50-70% it will quickly rejuvenate. Perhaps to vigorous except for the largest herbaceous beds, good in pots, raised beds.