Also known as purple giant hyssop, this highly ornamental medicinal herb is native to East Asia. The chartreuse, golden foliage and heavy scent makes this an award-winning perennial. This easy, adaptable perennial is attractive to pollinators and makes a lovely anise-flavored tea. Hardy from zones 5-10. A key herb in Traditional Chinese Medicine, the plant is used to soothe digestion and many other ailments. 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. One of the most beautiful and fragrant plants in our garden.