Oenothera speciosa (Showy Evening Primrose)

Seed Treatment

  • Cold Stratification: Stratify the seeds by placing them in a moist paper towel inside a sealed plastic bag in the refrigerator for 30 days before planting.

  • Scarification: Lightly rub the seeds with sandpaper to help break dormancy.

Planting Instructions

  1. Timing: Start seeds indoors 6-8 weeks before the last frost or sow directly outdoors in early spring or fall.

  2. Soil: Prefers well-draining, sandy or loamy soil with a pH between 6.0-7.0.

  3. Light: Requires full sun for best growth and blooming.

  4. Sowing:

    • Surface sow seeds as they need light to germinate.

    • Lightly press them into the soil but do not cover them.

  5. Watering: Keep soil evenly moist but not waterlogged until germination, which takes 14-30 days.

  6. Temperature: Ideal germination temperature is 65-75°F (18-24°C).

  7. Spacing: Thin seedlings to 12-18 inches apart when they are large enough to handle.

Once established, Oenothera speciosa is drought-tolerant and thrives with minimal care, producing beautiful pink blooms that attract pollinators! ??