European Blue Vervain is a hardy, low-maintenance perennial valued for both its medicinal properties and ecological benefits. Small, non-showy flowers bloom on erect stems, rising above a base of deep green, toothed leaves. Though modest in appearance, this plant is a magnet for pollinators and thrives in a variety of growing conditions.

Resilient and drought-tolerant once established, European Blue Vervain is a great choice for garden borders, flowerbeds, and naturalised plantings. It has been traditionally used in herbal medicine for centuries, often recognised for its calming and digestive properties.

Where Can You Grow European Blue Vervain?
This perennial herb grows well in Zones 4-9, preferring full sun to partial shade and well-drained soil. It is a great addition to wildflower meadows, pollinator gardens, and medicinal herb beds.

History and Historical Uses
Native to Europe and Asia, European Blue Vervain has been used for centuries in herbal remedies. Historically, it was believed to have calming and anti-inflammatory properties and was commonly used in infusions, tinctures, and poultices. Today, it remains a valued plant in natural medicine and permaculture landscapes.

Canadian Zone Information
Zones 8-9: Direct sow in autumn or early spring for early establishment.
Zones 5-7: Start seeds indoors in late winter or direct sow in spring.
Zones 4: Direct sow in spring or mulch heavily for winter protection.

How to Grow and Harvest European Blue Vervain

• Planting: Sow seeds 3mm (1/8in) deep, spacing plants 30-45cm (12-18in) apart.
• Watering: Keep soil moist until established, then allow to dry between waterings.
• Harvesting:
  • Collect leaves and flowering stems for herbal use when plants are mature.
  • Harvest in mid to late summer and dry for long-term storage.
• Maintenance: Remove spent flower stalks to encourage new growth.

Seed Saving Tips for Future Supply

• Allow to Flower and Seed: Leave some plants to fully mature and form seed heads.
• Harvest Seeds: Once seed heads dry and turn brown, collect them before dispersal.
• Dry and Clean: Separate seeds from husks and allow them to fully dry.
• Store: Keep seeds in an airtight container in a cool, dark place. Properly stored seeds remain viable for up to 3 years.

Certified Organic By

Islands Organics Producers Association (Cert#1962)