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Larkspur is a cool-season annual known for its upright growth and tall flower spikes. It produces densely packed blooms along slender stems during the growing season. This plant grows well in mild to cool climates and performs best in full sun with well-drained soil. Larkspur establishes steadily and is suitable for garden beds, borders, and naturalized planting, where it adds vertical structure and seasonal flowering.
Features
- Upright annual with tall, slender stems
- Produces dense flower spikes along stems
- Suitable for cool to mild growing conditions
- Adaptable to garden beds, borders, and naturalized areas
- Adds vertical structure to planting spaces
Specifications
- Scientific name: Consolida ajacis
- Common name (US): Larkspur
- Seed type / variety: Open-pollinated
- Growth habit: Upright, flowering annual
- USDA zones: 2–11 (grown as annual)
- Planting season: Fall and early spring
- Growing season: Cool season
- Sowing Season: October to November, February to March
- Germination time and conditions: 14–21 days at 15–18°C
- Sunlight requirements: Full sun
- Soil requirements: Well-drained, moderately fertile soil
- Watering needs: Moderate, consistent moisture
- Mature plant size: 60–120 cm height, 20–30 cm spread
- Plant spacing: 20–25 cm between plants
