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Verbena hastata - L.

Common Name American Blue Vervain, Swamp verbena
Family Verbenaceae
USDA hardiness 3-7
Known Hazards None known
Habitats Swales, damp thickets and shores[43].
Range N. America - Nova Scotia and New Brunswick to Florida, and from California to British Columbia.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential Yes
Medicinal Rating    (2 of 5)
Care
Fully Hardy Moist Soil Full sun
Verbena hastata American Blue Vervain, Swamp verbena


commons.wikimedia.org/wiki/User:Llez
Verbena hastata American Blue Vervain, Swamp verbena
commons.wikimedia.org/wiki/User:Llez

 

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Summary


Physical Characteristics

 icon of manicon of flower
Verbena hastata is a PERENNIAL growing to 1.5 m (5ft) by 0.6 m (2ft in).
It is hardy to zone (UK) 3. It is in flower from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, Lepidoptera (Moths & Butterflies). The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Seed
Edible Uses: Tea

Seed - cooked[257]. The seed can be roasted and ground into a powder or used whole as a piñole[105, 161, 183, 257]. Pleasantly bitter, some of this bitterness can be removed by leeching the flour[183]. The leaves are used as a tea substitute[161, 183, 257].

References

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Antiperiodic  Diaphoretic  Emetic  Expectorant  Tonic  Vermifuge  Vulnerary

The leaves and roots are antiperiodic, diaphoretic, emetic, expectorant, tonic, vermifuge and vulnerary[4, 21, 46, 222]. The roots are more active than the leaves[222]. The plant is used in the treatment of stomach aches, gravel, worms and scrofula[4, 257]. An infusion of the roots, leaves or seeds has been used in the early stages of fevers[257]. A snuff made from the dried flowers has been used to treat nose bleeds[257].

References

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Other Uses

None known

Special Uses

References

Cultivation details

Succeeds in any moderately fertile well-drained but moisture retentive soil in a sunny position[1, 200]. Plants are hardy to about -20°c[187].

References

Temperature Converter

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Propagation

Seed - sow early spring in a greenhouse or cold frame and only just cover the seed[1]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division in spring. Larger divisions can be planted out direct into their permanent positions. We have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring. Basal cuttings in early summer. Harvest the shoots with plenty of underground stem when they are about 8 - 10cm above the ground. Pot them up into individual pots and keep them in light shade in a cold frame or greenhouse until they are rooting well. Plant them out in the summer.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

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Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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