10+
Helenium autumnale seeds produce upright, clump-forming perennial plants with branching stems and narrow green foliage. This species is well suited for garden beds, borders, and naturalized plantings, where it provides seasonal structure and flowering. It grows best in full sun and prefers fertile, well-drained soil with consistent moisture. Helenium autumnale establishes steadily and performs reliably in temperate climates with regular care.
Features
- Upright, clump-forming perennial with branching stems
- Suitable for borders, beds, and naturalized areas
- Prefers fertile, well-drained soil
- Performs well in full sun conditions
- Requires consistent moisture for steady growth
- Suitable for temperate climates
Specifications
- Scientific Name: Helenium autumnale
- Common Name (US): Helenium
- Seed Type / Variety: Autumnale species flower seed
- Growth Habit: Upright, clump-forming perennial
- USDA Zones: 3–8
- Planting Season: Spring or fall
- Growing Season: Summer to fall
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Sowing Season:
- Spring: March to May
- Fall: September to October
- Germination Time and Conditions: 10–20 days at 18–22°C with light moisture
- Sunlight Requirements: Full sun
- Soil Requirements: Fertile, well-drained loamy soil
- Watering Needs: Moderate to high; keep soil evenly moist
- Mature Plant Size: 90–150 cm height, 45–60 cm spread
- Plant Spacing: 30–45 cm apart
