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Allium 'White Giant'

Naples onion

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Key information

Plant type

Hardy perennial

Flower colour




Skill level


Allium 'White Giant'

Plant details

Allium 'White Giant' bears beautiful, large globes of bright white flowers, in early summer. It's perfect for growing in drifts or large clumps in a sunny border, or large container, and makes an impressive cut flower. Like all alliums, its flowers are attractive to pollinators, including bees.

For best results, grow Allium 'White Giant' in fertile, well-drained soil in full sun. Plant bulbs up to three times their diameter, in autumn. It's not fully hardy and in colder regions should be mulched, or planted in pots and moved to a frost free area in autumn.

Family: Alliaceae

Genus: Allium

Cultivar: White Giant

Plant type: Hardy perennial

Flower colour: White

Foliage colour: Mid-green

Sun exposure: Full sun

Soil: Well-drained/light, Clay/heavy, Chalky/alkaline

Hardiness: Hardy

Skill level: Beginner

Height: 150cm

Spread: 30cm

Time to divide plants: February to May

Flowering period: May to June

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