Verbena hastata 5–7' tall.
Elegant tall branching spikes of vibrant blue-purple flowers. Honeybees mingle amongst the blossoms all day. Commonly used as a nervous-system tonic and mild sedative. Tincture of the fresh flowering tops is said to ease stress-induced neck tension, as well as help women to navigate premenstrual, perimenopausal and menopausal waters.
Grows wild along streambeds and marshes but will happily grow in ordinary garden soil. Plant 1–2' apart in full sun. Native to North America. Z3.