vegetable
allium family

Elephant Garlic

Allium ampeloprasum

Despite the name, elephant garlic is actually closer to a leek and produces huge, mild bulbs the size of a fist — perfect roasted whole or used raw where ordinary garlic would overpower. Plant individual cloves (60–80g each) 5cm deep and 25cm apart in October or November into free-draining, fertile soil in full sun. The long cold period is essential for proper bulb formation. Plants grow tall through spring; remove the flower scapes in May to direct energy into the bulb. Harvest in July or August when lower leaves yellow. Dry in an airy shed for 2–3 weeks before storing. Bulbs keep until spring. Small 'corm' offsets at the base can be replanted to bulk up your stock.

Plan where to grow Elephant Garlic using our vegetable garden planner.

SunlightFull sun
WateringModerate
Height1.0m
Spacing25cm
GerminationPlant cloves
Sowing MethodDirect sow
Frost HardinessHardy
Sowing Depth5cm

When to Sow Elephant Garlic

Sow elephant garlic in October, November.

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Sowing months

Time to Harvest Elephant Garlic

Expect to harvest approximately 9 months after sowing.

Companion Plants

Expected Yield

Each clove produces a single bulb of 200–400g.

Common Problems with Elephant Garlic

Small bulbs

Late planting or poor soil is usually to blame. Plant in autumn for the cold period, work in compost beforehand and keep weed-free.

Single round bulb (no cloves)

Common in the first year from a small clove or with a short cold spell. Replant these 'rounds' for an excellent multi-cloved bulb the following year.

Rust on leaves

Orange pustules on leaves reduce yield. Improve airflow with wider spacing, avoid overhead watering and rotate alliums on a 4-year cycle.

Related guides

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