Create a gorgeous, country garden effect with this oh-so-easy perennial. Best planted in groups so that you can enjoy a mass of sunshine yellow flower heads, they can also be dotted around in mixed borders where the aim is to create a tapestry of colors. The feathery, silver foliage combined with the gold blooms creates a treasure box of color, and the plants have a delightful, herby aroma. Cut some of the bountiful blooms to bring into your home flower arrangements, since they last well in the vase. The rosettes of leaves will spread, but they don't get out of hand.