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Allium nigrum
Allium nigrum
Allium nigrum
Allium nigrum

Allium nigrum

TAXONOMY

FamilyAmaryllidaceae
GenusAllium
Zone5

ABOUT

Allium nigrum, commonly known as Black Garlic or Black Onion, is a perennial plant in the Amaryllidaceae family. Native to the Mediterranean region, it is known for its striking, star-shaped white flowers with a hint of green. The plant typically blooms in late spring to early summer and goes dormant in the winter.

ALSO KNOWN AS

Black Garlic
Canidia Magica
Molium Paucibulbosum
Ophioscorodon Magicus
Ornithogalum Afrum
Allium afrum
Allium bauerianum
Allium cyrilli var. magicum
Allium littoreum
Allium magicum
Allium nigrum
Allium nigrum f. album
Allium nigrum f. roseum
Allium odorum
Allium paniculatum
Allium paucibulbosum
Caloscordum nigrum
Kalabotis nigrum
Molium nigrum

OVERVIEW

WaterMoist
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

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DETAILS

Care Instructions
Allium nigrum requires bright, direct sunlight for optimal growth. It thrives in moderate temperatures and prefers a relatively dry environment. Water the plant when the soil partially dries out, and ensure it has good air circulation to prevent fungal diseases.
Soil
Allium nigrum prefers well-draining loamy soil with a slightly acidic to neutral pH. Ensure the soil has good drainage to prevent waterlogging, which can lead to root rot. A mix of garden soil with some sand and organic matter works well.
Fertilizer
Use a balanced fertilizer with a nutrient composition of 5-10-10 during the growing season. Fertilize once a month to support healthy growth and flowering. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.
Repotting
Repot Allium nigrum every 2-3 years or when the plant outgrows its container. Choose a pot that is slightly larger than the current one and ensure it has drainage holes. Gently remove the plant from its old pot, shake off excess soil, and place it in the new pot with fresh soil mix.
Propagation
Allium nigrum can be propagated by dividing the bulbs in the fall or early spring. Carefully dig up the plant, separate the bulbs, and replant them at the same depth in well-draining soil. Water the newly planted bulbs lightly until they establish roots.
Pruning
Pruning is not typically required for Allium nigrum. However, you can remove spent flower heads to encourage the plant to focus its energy on bulb development. Cut back the foliage only after it has completely died back in the fall.
Toxicity
Allium nigrum is not toxic to pets or humans. However, as with all Allium species, it is best to avoid ingestion by pets, as large quantities can cause gastrointestinal upset.
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