Delphinium Casa Blanca White Seeds

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

Looking forward to airy Belladonna flower spikes? Follow our Delphinium Grow Guide for a light seed cover, cool-season timing and care through flowering.

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: Keep the fine cover in place; provide bright light immediately after emergence
• Germination: Roughly 10–20 days at about 18–21°C under suitable conditions; emergence can vary
• Prechill: Routine refrigerator prechilling is unnecessary
• Spacing: About 30 × 35 cm in a managed cut row; 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 about 18–21°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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