The puffy little plant is grown for its foliage but can spread through seed created by its small yellow flowers. It likes gardens in zones 3 through 7 and will grow to around 15 inches wide by 8-10 inches tall. My 'Silver mound's have exploded with growth since I planted them 6 weeks ago.
I planted my artemisia as a border-groundcover in our front sidewalk garden. I planted Russian Sage, Salvia nemorosa, and 'Stella D' Oro' daylilies along with the 'Silver Mound'. There is an 'Oranges and Lemons' gaillardia as well as another salvia that I believe is a Salvia lyrata with purple foliage in the sidewalk garden.
Silver mound is also fairly easy to propagate through stem cuttings during the summer. Just take a 3 inch stem tip cutting and stick it in sand after applying rooting hormone. I have seven more started with plans to take additional 'Silver Mound' artemisia cuttings later in the summer.