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  • Flowering Time
    • May
    • June
  • Planting Time
    • September
    • October
    • November
  • Growing
    • Hardy
  • RHS Recommended
    • Plants for Pollinators
  • Flowering Height
    • 38 cm
  • Bulb Size
    • 12 cm
  • Colour
    • Whites & Creams

Allium Nigrum

(inc. 20.0% VAT)



A fine cultivar with semi-rounded heads of creamy-white flowers, Allium ‘Nigrum’ is commonly known as black or broadleaf garlic.  Each star-like floret holds a shiny green ovary at its centre and a cluster of delicate stamens.

Excellent for dry and gravel gardens, pretty Allium ‘Nigrum’ thrives in full sun and well-drained, fertile soil.  The bulbs also look wonderful grown in swathes to naturalise through grassy areas and are highly attractive to pollinators.

Native to the Middle East, this ornamental onion was traditionally used to aid the immune system.

Flowers during May and June, making Nigrum a wonderful bridging plant to bring interest during the seasonal crossover, sometimes called the ‘May gap’ in the gardening calendar.

Care Guide

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Planting Time
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