Aruncus dioicus (Goat's Beard)

? Seed Treatment

  1. Cold Stratification Steps:

    • Mix seeds with a small amount of moist vermiculite, sand, or peat moss.
    • Place in a sealed plastic bag and refrigerate at 35–40°F (1–4°C) for 4–6 weeks.
    • Check occasionally to ensure the medium remains moist but not soggy.

? Sowing Instructions

  1. When to Sow:
    • Indoors: Start seeds 8–10 weeks before the last expected frost after stratification.
    • Outdoors: Direct sow in late fall for natural stratification or in early spring.

  2. Soil Requirements:
    • Prefers moist, rich, well-draining soil with high organic content.
    • pH range: 5.5–7.0 (slightly acidic to neutral).

  3. Light Requirements:
    • Thrives in partial shade to full shade, especially in hot climates.
    • Can tolerate full sun in cooler regions if soil stays consistently moist.

  4. Sowing Depth:
    • Surface sow seeds and press lightly into the soil.
    • Do not cover, as seeds need light to germinate.

  5. Watering:
    • Keep soil evenly moist during the germination period.
    • Mist gently to avoid displacing seeds.

  6. Germination Time:
    • Seeds typically germinate in 21–30 days, though it can take longer under variable conditions.
    • Maintain a temperature of 60–70°F (16–21°C) for best results.

  7. Spacing:
    • Transplant seedlings or thin plants to 24–36 inches (60–90 cm) apart, as mature plants are large and spreading.

? Growing Tips

  • Aruncus dioicus is a hardy perennial known for its tall, feathery plumes of creamy-white flowers in late spring to early summer.
  • It works beautifully in woodland gardens, shade borders, and moist areas near streams or ponds.
  • Once established, it requires minimal care but appreciates consistent watering and mulching to retain soil moisture.
  • Cut back dead foliage in late fall or early spring to encourage healthy regrowth.

Enjoy the graceful texture and stately presence of Goat’s Beard in your shade garden! ??