Lamiaceae: an upright, deciduous perennial forming a clump of leafy stems. Found on dry thickets, fields and waste ground, prairies and plains. The flower spikes are short, with broadly ovate bracts, and are a strong violet blue. Blooming from around July. The leaves are highly aromatic with a distinct aniseed scent and have white undersides. Native to Western North America, from Ontario to Washington, south to Colorado.
The leaves are used fresh or dry as a tea or seasoning, especially by the Indians.
The leaves have cardiac and diaphoretic properties. An infusion of the leaves is used in the treatment of colds, fevers, and for a weak heart. When left to go cold, the infusion is used to treat pains in the chest (such as when the lungs are sore from too much coughing). A poultice of leaves and stems can be used to treat burns.
Germinates best with GA3 [Gibberellic acid]. Year-old seed germinates in 1 - 3 weeks. Can also be germinated in 1 - 3 months at 13°C. Prefers a sunny position and a dry well-drained soil. This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°C. In my experience this is not very hardy here in the north east of England, and I often lose them over the winter. The flowers produce abundant nectar and it is an excellent honey plant. Birds like the seed.