Filipendula palmata (Meadowsweet)

Seed Treatment (Stratification Required)

  1. Cold Stratification:

    • Mix seeds with moist sand or peat moss and place them in a sealed plastic bag.

    • Refrigerate at 35–40°F (1–4°C) for 60 days.

    • Check periodically to ensure the medium remains slightly moist but not soggy.

  2. Soaking (Optional):

    • Soak seeds in room temperature water for 12–24 hours before sowing to help soften the seed coat.

Sowing Instructions

Outdoor Sowing (Preferred Method)

  1. Timing:

    • Sow in fall for natural stratification or early spring after artificial stratification.

  2. Location:

    • Choose a partially shaded to full sun area with moist, well-draining soil.

  3. Sowing Depth:

    • Surface sow the seeds and lightly press them into the soil. Do not cover them, as they need light to germinate.

  4. Watering:

    • Keep soil evenly moist but not waterlogged.

Indoor Sowing (For Controlled Germination)

  1. Start seeds indoors 6–8 weeks before the last frost.

  2. Use seed trays with a well-draining, moist potting mix.

  3. Maintain temperatures of 65–75°F (18–24°C) for germination.

  4. Germination Time:2–6 weeks after stratification.

  5. Transplant outdoors after the last frost when seedlings have 2–3 sets of true leaves.

Growth & Care

  • Spacing: 12–18 inches apart for healthy growth.

  • Soil Preference: Prefers rich, moist soil with a pH of 6.0–7.0.

  • Watering: Keep soil consistently moist but avoid standing water.

  • Fertilization: Apply a balanced organic fertilizer in early spring to boost growth.

  • Bloom Time: Summer with delicate pink flowers attracting pollinators.

  • Pruning: Cut back in late fall or early spring to promote healthy growth.

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