Plant has green, fern-like fragrant foliage with small yellow, button-like flowers in summer. Leaves are used to make dyes or dried for an insect repellent. Flowers can be used in cut floral arrangements. It grows 36-48" tall by 24-30" wide in full sun to part shade in well drained soil. Can become invasive if not kept under control. Perennial zone 4-9.