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black garlic | Plant Finder | Fill My Garden

Home/Plants/Bulbs

Plants > Bulbs

black garlic

Allium nigrum

Pollinator Friendly

Genus: Allium
Family: Amaryllidaceae
Common Names: broad-leaved onion

About this plant

A hardy perennial bulb, up to 75cm tall, with grey-green foliage. Large, open, creamy-white flowers, with a central greenish-black ovary, form rounded clusters with a flattened top, up to 10cm across, in early summer

Growing Information

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Hardiness

Foliage

Deciduous

Growing Conditions

Sunlight

Full Sun

Soil

ClayChalkLoamSandy

AcidAlkaline

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Neutral

Moisture

Poorly DrainedWell Drained

Aspect

East FacingSouth FacingWest Facing

Exposure

Exposed

Care Guide

Cultivation

Easy to grow in fertile well-drained soil. Add grit when grown in clay soils to improve drainage. See allium cultivation

Pruning

No pruning required

Propagation

Propagate by seed, sowing in containers in a cold frame when just ripe or in the spring. Alternatively, remove offsets in autumn

Pests

Generally pest free

Diseases

Onion white rot and a downy mildew may occur

Garden Uses

Uses

Cottage InformalHedging ScreensCity CourtyardGround Cover

Planting Places

Outdoor

Season of Interest

SpringSummer

Size & Characteristics

Height

0.5-1 Metres

Spread

0.1-0.5 Metres

Habit

Bushy

Time to Full Height

Five To Ten Years