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How to Grow Elephant Garlic

Allium ampeloprasum var. ampeloprasum

Hardy Cool Season Single Harvest

Elephant garlic is planted in autumn like regular garlic and harvested the following summer. Plant large cloves 10-15 cm deep, 20 cm apart. Keep weed-free and water in dry spells in spring. Remove flower scapes in early summer to boost bulb size. Harvest when half the leaves yellow and dry. Cure for 2-3 weeks before storing. The flavour is milder than true garlic — closer to a roasted garlic or mild onion.

When to Start

Direct sow outdoors as soon as soil reaches 5°C — typically early to mid spring. Hardy enough to tolerate light frosts.

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Growth Stages

Sow seeds
Day 0
Germination
~21 days
Harvest
~270 days
Seed to harvest
~270 days

Approximate days from start

Care Essentials

  • Apply a nitrogen-rich fertiliser in early spring as leaves emerge to support bulb development. Avoid feeding after mid-spring as this can delay ripening.
  • Elephant garlic is technically a leek, not a true garlic, with a milder, less pungent flavour. Single cloves can produce single-cloved bulbs in their first year — these are normal and will produce full multi-cloved bulbs if replanted.

Growing Conditions

Min. soil temperature
5°C+
Germination temperature
5–18°C

Pet Safety

Cats: Toxic
Dogs: Toxic
Source

Don't know your frost date? Find it here

Spacing & Planting

Plant spacing 20 cm
Row spacing 30 cm
Sow depth 10 cm
Mature height 100 cm
Mature spread 20 cm

Large bulbs need more space than regular garlic. Plant with the flat side down, tip pointing up, at a depth of 10-15 cm.

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Growing Conditions

Min. soil temperature5°C
Germination temperature5–18°C
Base growth temperature0°C
Photoperiod sensitivitylong day

Frequently Asked Questions

How far apart should I plant Elephant Garlic?
Plant Elephant Garlic 20cm apart with 30cm between rows.
Is Elephant Garlic frost hardy?
Elephant Garlic is classified as Hardy.

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