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Narrow-leaved Vervain

Plant Type: Herbaceous
Habitat: Fields, Roadside, Disturbed
Light Requirements: sun, part sun
Soil Moisture: dry, mesic
Soil Type: All
Height: ¾ to 2½ ft
Bloom Time: July to September
Flower Colour: blue-purple
Comments:
Germination: Seed will germinate upon being shifted to 70°F after 90 - 140 days of moist, cold stratification at 40°F. Seed requires light to germinate
Alternate Common Name: Slender Vervain
Picture Copyright: Thomas G Barnes @ USDA-NRCS PLANTS Database
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