Trachelium caeruleum Corine Misty Blue | Throatwort

Trachelium caeruleum Corine Misty Blue is a premium variety known for its large decorative umbels filled with masses of delicate star-shaped flowers in a soft violet-blue color. The Corine series is recognized for its uniform growth, excellent branching, and fast bud formation, making it a reliable choice for professional cut flower production. Unlike other varieties, Corine Misty Blue performs exceptionally well in darker, cooler conditions, ensuring consistent flowering throughout the season.

Key Features:

• Soft Violet-Blue Blooms: Large clusters of star-shaped flowers for a delicate, elegant look.
• Uniform Growth: Reliable, well-structured plants with strong stems.
• Fast Bud Formation: Quick flowering even in low light and cooler conditions.
• Extended Production Season: Can be produced almost year-round, performing best in autumn and winter plantings.
• Versatile Use: Ideal for both cut flower production and garden displays.
• Starting Material: Pelleted seed

Growing Information:

• Scientific Name: Trachelium caeruleum
• Cultivation Location: Greenhouse
• Plant Density: 24-86 plants per m
• Sowing Period: Autumn and early winter
• Cultivation Temperature: Cool to warm
• Time to Young Plant: 8-12 weeks
• Time to Maturity: 16-26 weeks
• Days to Germination: 10-14 days at 18-22C

Sowing & Cultivations

• Sowing Method: Sow 1 seed per plug in a 288-cell tray. No covering is required.
• Sowing Media: Well-drained, sifted, loose soil with a pH of 6.0 and 0.5-0.9 EC.
• Fertilization: Begin with 1.0 EC ms/cm, alternating between calcium nitrate and potassium nitrate. Discontinue nitrogen in the last 4 weeks of cultivation.
• Watering: Keep soil moist but well-drained; avoid overwatering.
• Transplanting: Move seedlings to larger containers when true leaves develop (approximately 6 weeks after sowing).
• Pinching (Optional): Pinch plants 23 weeks after planting, between the second and third leaf pair, to encourage bushier growth and more flower stems.
• Spacing: Space plants 24-30 cm apart for optimal airflow and development.

Harvesting & Storage:

• Harvest: Cut when 70-80% of the flowers in the cluster are open for the best vase life.
• Storage Temperature: 2-5C for optimal freshness.
• Vase Life: 7-10 days

Additional Details:

• Light Preference: Full sun to part shade
• Plant Height: 75-90 cm
• Stem Length: 75-90 cm
• Hardiness Zones: 5-9 (Annual in most climates)
• Soil Requirements: Well-drained, fertile soil with neutral to slightly acidic pH

Uses:

Perfect for cut flower production, floral arrangements, and garden borders. The soft violet-blue blooms provide an elegant and airy touch to any bouquet, making it a favorite for florists and growers alike.

Trachelium caeruleum Corine Misty Blue is the ideal choice for those seeking a high-quality, uniform variety that thrives in cool conditions and ensures steady flowering throughout the season.