Black garlic - Allium nigrum (Care, Characteristics, Flower, Images)

Black garlic

Also known as: Broadleaf garlic

Black garlic (Allium nigrum) is a species of wild onion that is native to the Middle East. Despite its common name, black garlic produces creamy white flowers with green centers; these are small and grow in dense clusters from a single flower spike.

Scientific classification

Species

Black garlic (Allium nigrum)

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Perennial

Lifespan

Herb

Plant Type

Late spring, Summer

Bloom Time

Mid spring, Late spring, Summer, Early fall, Mid fall

Harvest Time

45 cm to 60 cm

Plant Height

10 cm

Spread

Green, Gray, Silver

Leaf Color

8 cm to 10 cm

Flower Size

Green

Fruit Color

White, Cream

Flower Color

Green, Gray, Silver, White, Cream

Stem Color

Distribution of Black garlic

Distribution Map

Black garlic originally hails from the Mediterranean and adjoining regions of southwestern Europe and northern Africa. It has been introduced and thrives in various areas of central and northern Europe. Black garlic is also cultivated, indicating its adaptation beyond its native range for horticultural purposes.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Disturbed roadsides

Hemisphere Trend Curve

Northern

Sorthern

Cultivars

There are several recognized cultivars of Black garlic, including the following common varieties :

Black garlic 'Silver Spring'Onions 'Globemaster'Onions 'Mars'Onions 'Jackpot'Onions 'Pinball Wizard'

Toxicity

Black garlic is mildly toxic to humans, cats, and dogs. Ingesting any part of black garlic can cause gastrointestinal discomfort, oral irritation, or dermatitis in humans. Pets may show signs of physical discomfort, illness, or pain. It is critical to seek immediate veterinary care if a cat or dog consumes black garlic to ensure their well-being.

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Care Guide for Black garlic

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Native to temperate regions, black garlic requires moderate moisture levels and consistent soil hydration without waterlogging. Weekly watering is ideal, but rainfall during the growing season can supplement this, enhancing its balance between drought tolerance and hydration needs.

Fertilize: Black garlic requires balanced nutrition with monthly applications of a balanced (10-10-10) fertilizer during active growth, switching to a high-phosphorus fertilizer before blooming. Over-fertilization can harm black garlic, so apply sparingly and always water thoroughly to promote health and floral production.

Pruning: Black garlic has tall stems and clustered flowers. Prune in early to late spring by removing dead foliage and trimming spent flower stalks to boost bulb growth. Regular pruning improves shape, health, and air circulation. Ensure sterilized tools to prevent disease; consult horticultural guidelines for techniques.

Propagation: Black garlic propagates easily through division. After foliage wilts, separate bulb clusters and replant at the same depth, ensuring adequate spacing. This technique promotes strong root development, facilitating successful establishment with minimal transplant shock.

Repotting: Black garlic requires excellent drainage when planted in pots to ensure healthy growth and prevent waterlogging, which can lead to root rot.

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