Notice: We do not accept seeds that were given before 2025 as they were in fact Blue Vervain (Verbena hastata).
Image of Verbena simplex
Source: Donna Bos
image of Flowering plant
Verbena simplex
Narrow-leaved Vervain
Verveine simple

Obsolete Names

simple vervain
No seeds available for this plant.
We currently accept seeds for this plant
Bloom colour: White Bloom period: Jun - Aug
Max Height: 2.0 feet
Max Width: 2.0 feet (spreads by rhizome)
Light condition:
Full sun More than 6 hours of direct sun a day
Soil conditions:
Moisture dry Tolerates dry soil condition
Lifespan: Perennial plants that will that come back year after year
Gardener Experience:
plant germinate easy Easy to germinate
plant self seeding Self-seeding
Landscape uses:
rock garden Suitable for rock gardens
row garden Suitable for Right of Way gardens
container suitable Suitable for container garden
school garden Suitable for school gardens
boulevard garden tolerant Tolerates boulevard garden conditions
Ecological Benefits:
Pollinator garden Supports pollinators
butterfly host Butterfly host
Tolerates:
limestone Tolerant Tolerates limestone conditions
sand Tolerant Tolerates sandy conditions
transplantation Tolerant Tolerates transplantation
Special Features and Considerations:
causes skin rashes This plant causes skin rashes

Plant Location

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Verbena simplex
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Boreal Shield
  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Verbena simplex

  • Crambodes talidiformis (Verbena)
  • Endothenia hebesana (Verbena Bud)

Specialized Bees Supported by Verbena simplex

No bee data available for this plant.

Plants that grow in similar conditions, that bloom at the same time.

Complementary Plants

Substitute For Non-Native Plants

  • Sorbaria sorbifolia (False spirea)
  • Aruncus Dioicus (Goat's Beard)
  • Lamium (Dead nettle)
  • Astilbe (Astilbe)
  • Lavandula) (Lavender)
  • Hesperis matronalis (Dame Rocket)
  • Liatris (Blazing Star Cultivar)

Sowing Information

Download Sowing Label (PDF)
  • Sowing depth: Surface sow
  • Sow by March
  • Stratification duration: 30 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: August
  • Harvesting indicator: Pods are brown, seeds are dark, and crisp, and little stem connecting the pod to the main stem is brown (not green)
  • Harvesting mean: Shake seed head in paper bag
  • Seed viability test: No test needed before donating
  • Packaging measure: 1 rounded 1/8 teaspoon
  • Seed storage: Air dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
  • At least one cultivar: No, you can donate without knowing the source as there are only straight species
  • No harvesting video available at this time.

Toxicity Notes

Inadequate information on toxicity found.