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Create your own plant list and get plant care reminders direct to your inbox!
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Beginner
skill rating |
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0.4m
max. spread |
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0.45m
max. height |
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2-5 years
to maturity |
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1 hour care
per year |
Botanical name: Allium nigrum
Other names: Allium multibulbosum, Black garlic, Broad-leaved onion
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Genus: Allium
Species: A. nigrum - A. nigrum is a bulbous perennial with strap-shaped leaves. In mid-summer, it produces globular heads of white, star-shaped flowers on upright stems. It gets its name from the dark centres to its flowers.
Allium nigrum is: Deciduous
Flower: White in Summer
Foliage: Grey-green in Summer
Habit: Upright
Allium nigrum (Black garlic) will reach a height of 0.45m and a spread of 0.4m after 2-5 years.
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Suggested uses: Beds and borders, City, Cottage/Informal, Gravel, Low Maintenance
Cultivation: Grow in fertile, but well-drained soil. Add grit to clay soils to improve drainage.
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| Soil types: |
Chalky, Clay, Loamy, Sandy (will tolerate most soil types) |
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| Soil drainage: |
Moist but well-drained, Well-drained |
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| Soil pH: |
Acid, Alkaline, Neutral |
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| Light: |
Full Sun |
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| Aspect: |
South, East, West |
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| Exposure: |
Sheltered |
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| Hardiness: |
Hardy (H4), Tender in frost (H3) |
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We list 13 suppliers who tell us they sell Allium nigrum (Black garlic). In order to see the list you'll need to either register or log in as a full member.
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