What is blue vervain and how is it traditionally used?

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Noddie Night · Accepted Answer

Blue vervain (Verbena hastata) is a North American wildflower with a long history of traditional use in herbal medicine. The USDA's ethnobotanical database lists traditional uses such as stomach ache, colds and fevers, and herbalists also describe it as a calming nervine. It tastes bitter and is usually taken as a tea or tincture. Modern research on sleep is very limited.

The database draws on older reference books and records uses across Amerindian, Colonial and Appalachian traditions, including as a diaphoretic (to promote sweating), an expectorant and an emetic. These are historical records, not proof of benefit, and the nervine description comes from herbal practice rather than from that database.

In calming blends blue vervain is often paired with skullcap, a convention of herbalism rather than something tested in clinical studies. It is not the same as common garden verbena, so check the botanical name on a label.

Noddie Night includes blue vervain among its five herbs. As research on safety is limited, talk to your doctor if you are pregnant, nursing, taking medication or have a medical condition.

What is blue vervain and how is it traditionally used?

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