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Also known as American Vervain and Swamp Verbena, Blue Vervain is an upright, clump-forming perennial herb native to almost all of the US and Canada, where it is typically found in wet meadows, bottomlands and along stream banks and waste areas. In Spring tall erect stems with pairs of opposite leaves arise. These are topped by a candelabra-like panicle of violet flowering spikes in Summer (the species name hastata means spear-shaped). The flowers open from the bottom of the spike upward, with only a ring of a few flowers open at a time. Winter dormant. Height to 1.5m.
9cm pot
Easy to grow in average, medium to wet soils with good drainage. Full sun. Typically forms colonies in the wild by thick, slowly spreading rhizomes and self-seeding. Cut back after flowering or leave to self-seed.
Blue Vervain has a strong history of traditional use for relaxing nerves, treating convalescents and people suffering from depression, headaches, jaundice, cramps, coughs and fevers. Externally, it has been applied to wounds, ulcers and acne.
Despite its long history of traditional use as a medicine, there is limited modern research in humans, though studies in animals have shown for example that vervain extract may have an anxiety-reducing effect similar to diazepam, that it may help decrease the number of seizure episodes and reduce the duration of episodes in epilepsy. Modern herbalists use Blue Vervain extracts in the treatment of both these issues.
Primary Actions: antiperiodic, diaphoretic, emetic, expectorant, tonic, vermifuge and vulnerary.
Parts Used: leaves, roots
N.B. Shipping costs are added AFTER you have placed your order, you will then be emailed an invoice with bank details.
Smallest box rate:
This can fit up to 9 plants in 9cm pots.
Shipping a single tree can be expensive. We may be able to fit more in the box for the same price! See our shipping rates for single and multi tree boxes.
Combining sizes?
No problem, we will work out the best rate for you once you’ve placed your order.
Jo has a passion for growing herbs but is not a qualified herbalist and has no medical background.
We are lucky to have Patricia Beagle working here at times, who is qualified, and some of her advice does appear on these pages, but herbs act differently for different people and can interact with other medicines. We therefore always recommend that you consult with your own qualified health-care practitioner before using herbal products, particularly if you are pregnant, nursing or on any medications.
Kahikatea Farm cannot take any responsibility for any adverse effects from the use of the plants or a plant not having the effect it is reputed to have.
