| Blue Vervain |
| Verbena hastata|
| Uses: Medicinal
|| Duration: Perennial (hardy in zones 3-9) |
| When to Sow: Spring/Late Summer/Early Fall
|| Ease of Germination: Moderate/Special Treatment Required |
Native North American wildflower growing in damp areas. Has a tranquilizing effect; useful for insomnia and other nervous conditions. Needs cold period (5°C/40°F; 4-8 weeks) followed by warm (20°C/70°F) and exposure to light (do not bury seeds) for successful germination.