Delphinium Elatum ‘Casablanca’ (White Delphinium)
Delphinium Elatum ‘Casablanca’ (White Delphinium)
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Delphinium Elatum ‘Casablanca’ (White Delphinium) is a tall, elegant perennial known for its striking spires of pure white flowers and strong vertical presence. It is widely used in cottage gardens, formal borders, and cut flower plantings where height and seasonal drama are required. Its clean white blooms provide excellent contrast and structure in mixed perennial designs.
White Delphinium thrives in full sun to part shade in rich, moist, well-drained soil. It benefits from staking in exposed positions and regular feeding to support its tall flowering stems. Ideal for background planting and floral arrangements, it delivers impressive early summer colour and architectural elegance.

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Mature height
120–180 cm
Mature width
40–60 cm
Spacing
40–60 cm apart
Evergreen/Deciduous
Herbaceous perennial
Foliage
Pure white flower spikes with green foliage
Flowering Period & Fruit Development/Harvest
Early to mid-summer (often repeat flowering with care)
Sun tolerance
Full sun to part shade
Maintenance
Moderate; requires staking and deadheading for best performance
Root System
Fibrous clumping root system