Also known as purple giant hyssop. Chartreuse, golden foliage and heavy scent makes this an award winning perennial. All America Selection winner in 2003. This easy, adaptable perennial is attractive to pollinators, and makes a lovely anise flavored tea. The purple blooms add brush strokes of color to the perennial border all summer long. Plants average 2 feet tall and will be covered in oodles of butterflies and bees; goldfinches also love the seeds.