10+
Threadleaf coreopsis seeds produce fine-textured, perennial flowering plants with upright, airy growth and narrow, thread-like foliage. This type is well suited for garden beds, borders, and naturalized plantings where a soft, open appearance is desired. It thrives in full sun and adapts to a range of well-drained soils, including sandy and moderately low-fertility conditions. Once established, threadleaf coreopsis tolerates dry periods and requires minimal maintenance, making it suitable for low-input landscapes.
Features
- Fine-textured perennial with airy, upright growth
- Narrow, thread-like foliage for a soft appearance
- Suitable for borders, beds, and naturalized areas
- Adapts to well-drained sandy and loamy soils
- Tolerates dry conditions once established
- Low maintenance growth habit
Specifications
- Scientific Name: Coreopsis verticillata
- Common Name (US): Coreopsis
- Seed Type / Variety: Threadleaf variety
- Growth Habit: Upright, clump-forming perennial
- USDA Zones: 3–9
- Planting Season: Spring or fall
- Growing Season: Spring to summer
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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: Well-drained, sandy or loamy soil
- Watering Needs: Low to moderate; drought tolerant once established
- Mature Plant Size: 30–60 cm height, 30–45 cm spread
- Plant Spacing: 25–30 cm apart
