Delphinium Casa Blanca White Seeds

Delphinium Casa Blanca White Seeds produce tall spikes of pure white flowers for refined garden and cut flower displays.

Grow Guide: How to grow Belladonna delphiniums from seed in South Africa.

Quick Grow Facts

• Plant Type: Cool-season short-lived perennial, often managed as a seasonal cut-flower crop
• Scientific Name: Delphinium × belladonna
• Seed Form: Raw seed
• South African Sowing Time: Late summer to autumn in mild climates; protected late-winter sowing where severe frost is a risk
• Position: Full sun in cool conditions; morning sun and afternoon protection in hot districts
• Sow Depth: Cover approximately 1 mm
• Light: The packet requires a cover but gives no strict light/dark requirement; provide bright light immediately after emergence
• Germination: Approximately 10–14 days at 20–22°C
• Prechill: Not required for this supplied seed
• Spacing: Packet cut-row spacing 30 × 35 cm; allow about 45 cm in a home border
• Height: Approximately 105 cm under the matched Ball listing; support in exposed sites
• Flowering Time: Seasonal; plan for the first cool growing cycle and allow local temperature and establishment to shift timing
• Flower Outcome: White cut-flower stems; a small proportion may flower pale blue

Why Grow This Variety

• Pure white flowers create a clean, elegant display.
• A small percentage of blooms may show a pale blue hue.
• Long stems suit cutting for floral arrangements.
• Plants may be grown in a garden, field or greenhouse.

Garden Uses

Use Casa Blanca White in sunny garden or greenhouse cutting rows, then harvest its long stems for white floral arrangements.

Growing Notes

• Use clean, freely drained seedling mix and a loose 1 mm cover.
• Keep at 20–22°C and evenly moist, never saturated; give bright light immediately after emergence.
• Pot on after true leaves, harden gradually and plant at the spacing above.
• Water at soil level, feed moderately and support stems before wind or heavy rain.
• All parts, including seed and seedlings, are toxic if swallowed. Keep away from children, pets and livestock and seek prompt medical or veterinary advice after suspected ingestion.

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