Dusty Miller occasionally survives zone 5 winters and rewards you with button-like yellow flowers the next spring. A. Silver Mound' is an excellent mounding plant. I find it tends to become floppy during the course of the summer. Here is one way to provide extra support to help it maintain a good appearance. This plant does not tolerate humidity.
Full sun produces the best looking plant.
Two other Artemisia cultivars that I love are Valerie Finnis and Powis Castle . Lamb's ear, Stachys byzantina , makes a wonderful border-ground cover type plant. One form is now flowerless while the others have tall spikes of purple flowers. Many growers cut the flower stalks off although I find them attractive to both bees and butterflies. The leaves are a very soft, felt-like material.