PL#1779
'Nigrum'
Allium
Allium nigrum, also known as black garlic or broad-leaved leek, reaches 18 to 24 inches tall, featuring 3 to 4 inch flat clusters of creamy-white to pale lilac star-shaped florets with green centers. Blooming in late spring to early summer, it thrives in full sun and well-drained soil, showing drought tolerance and strong resistance to deer while attracting pollinators. Native to the Middle East, it has naturalized in parts of the United States. Ideal for borders and mixed plantings, it pairs beautifully with peonies and irises.
Public reference
- Genus
- Allium
- Species
- —
- Cultivar
- Nigrum
- Trade name
- —
- Hardiness zones
- 4–7 (USDA)
- Mature height
- 2 ft
- Mature width
- 0.167–0.333 ft
- Description
- Allium nigrum, also known as black garlic or broad-leaved leek, reaches 18 to 24 inches tall, featuring 3 to 4 inch flat clusters of creamy-white to pale lilac star-shaped florets with green centers. Blooming in late spring to early summer, it thrives in full sun and well-drained soil, showing drought tolerance and strong resistance to deer while attracting pollinators. Native to the Middle East, it has naturalized in parts of the United States. Ideal for borders and mixed plantings, it pairs beautifully with peonies and irises.
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Identity
- Common names
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- Patent number
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Lifecycle & form
- Lifecycle
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- Deciduous / evergreen
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- Height category
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- Form
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- Growth habit
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Site requirements
- Sun exposure
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- Soil moisture
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- pH range
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- Drought tolerant
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- Flood tolerant
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- Heat tolerant
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Flowers
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- Flower colors
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- Flower size
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- Flower shape
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- Petal count
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- Reblooming
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- Fragrance level
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- Fragrance notes
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Foliage
- Foliage colors (by season)
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- Variegated
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- Seasons of interest
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Wildlife & safety
- Attracts
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- Deer resistant
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- Rodent resistant
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- Pet toxicity
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- Human toxicity
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Use & care
- Best for
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- Thornless
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- Has seed pods
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- Difficulty level
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- Gardener notes
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Legal
- Asexual propagation forbidden
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- Patent expires
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