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Allium ‘White Giant’

The common name for Alliums is Ornamental Onions. Yes, they’re related but we just stick to calling them Alliums and shut up about the onions. They need sun and reasonably well drained and reasonably rich soil. They’re hardy but die down in the winter. As soon as the mighty flower appears, the foliage wilts so if you’re clever, they’ll be planted where you can see the flower but not the base with the wilting leaves. To do clever positioning, it’s important to know how tall the flower is likely to get – they vary between 6″ and 3ft according to the species. It’ll give you some idea on the label. Look out for slugs.

Hardiness traffic light green

Hardiness level Green

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Hardy anywhere in Britain below approximately 1000ft (300m)

This is only meant as a guide. Please remember we're always on hand to give advice about plants and their frost hardiness.

Please remember that these coloured labels are only a rough guide.

General Point about Plant Hardiness: The commonly held belief that it's better to 'plant small' is perfectly true with herbaceous plants, but not necessarily true with woody plants. They need some 'wood' on them to survive severe cold - so plants of marginal hardiness in very cold areas should really be planted LARGER, rather than smaller, wherever possible.