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American blue vervain
Verbena hastata
American blue vervain is an erect, upright perennial that can reach up to 2–4ft in height. It has pointed, toothed, lance-shaped leaves and is entirely covered in tiny, light-blue flowers. American blue vervain is known for its medicinal properties and has long been used in Native American folk medicine. It is a natural sedative and an effective remedy for colds and headaches. The plant can easily be grown in gardens but prefers full sun and moist, well-drained soil. It can also become weedy or invasive, so keep an eye on it and deadhead spent flowers to ensure the plant remains in check.
Sunlight
Full Sun
Water Needs
high
USDA Hardiness Zones
Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8
Hardiness Map
Green areas show climates worldwide where this plant can grow.
Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8
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Water Every
7-10 days
Sun Needs
full-sun
Growth
Low
Care Level
Low
Season
Fall
Sep Oct Nov
Winter
Dec Jan Feb
Spring
Mar Apr May
Summer
Jun Jul Aug
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pruning Time
How to Propagate
Division
Divide root ball in spring, replant sections immediately
Root Cutting
Take 4-6" cuttings in spring, root in water or moist soil
Seed Propagation
Start seeds indoors 6-8 weeks before last frost date
Layering Propagation
Bend stem to soil surface, cover lightly, roots form in 4-6 weeks
Plant Characteristics
Drought Tolerant
Is This Plant Right for You?
Good For:
- •Forgetful waterers
- •Homes with pets
- •Low-maintenance gardens
Consider Carefully:
- •Indoor growing
Bloom Seasons
Care Tips
Light Requirements
Needs at least 6 hours of direct sunlight daily. Place in the sunniest spot in your garden.
Watering
Requires frequent watering to maintain moist soil. Don't let the soil dry out completely.