Vervains – Hoary vervain (Verbena stricta) Seeds

$ 4.75

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Hoary vervain is a short-lived perennial of dry prairies. Its lavender-blue flowers bloom for over a month in July and August with fuzzy, gray-green foliage. This plant makes a dramatic addition to any landscape with very dry soil. Establish in a meadow or plant as a large group in a dry perennial bed or urban sidewalk strip. Numerous pollinating insects visit the flowers in bloom, the foliage serves as a host for the Buckeye butterfly, and birds relish the seeds in winter.

Native to Maine: No. Native to the Midwest.

Growing conditions: Full sun in dry soil

Grows up to: 2'

Blooms: In mid-summer

Natural habitat: Sunny, dry meadows and roadsides

Seeds per packet: 50-100

Germination Code(s): B
These seeds require a cold period to germinate - a minimum of 60 days below 40°F in moist soil (or sand or vermiculite). Sow outdoors in pots, on the soil surface and leave uncovered, November through February. A great species for beginner seed-sowers.

Each seed package carries a specific germination code along with the plant description. These codes indicate specific sowing instructions.

  • A Seeds can be sown outdoors in fall or early spring.
  • B Seeds need a winter or cold period to germinate. Sow outdoors in fall or winter.
  • C Seeds need light to germinate; sow on soil surface and leave uncovered.
  • D Seeds need alternating cycles of warm-to-cold-to-warm to germinate. They can be sown either outdoors in spring or summer and will germinate the following year or in a flat in a warm place for 3 months, then moved to a refrigerator for 2 months, then moved outside in the early summer warmth.
  • E Seeds can not be allowed to dry out. Sow immediately.
  • F Seeds take two years to germinate. Sow outside in the fall or winter and look for germination in the second spring. A shady location prevents the flats from rapid drying and reduces weeding
  • G Large seeds should be soaked overnight in water.
  • FERN: Sow spores in a warm bright location in a sealed container and keep moist. Directions enclosed with package. Challenging.

If you have specific questions about seeds and germination guidelines please contact us at

All seeds can be sown and placed outdoors in fall or winter bypassing the need for an artificial indoor cold stratification (refrigerator) required for some species when planted in spring. This is the simplest method. See How to Grow Natives From Seed for detailed instructions.