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Allium giganteum

Common name: Giant Onion

Big and bold pollinator pleasure

-10 to -15°C
Good Cut Flowers
Good for Pollinators

Available as:

What will I receive?
Bulbs
3 for £17.00
just £5.67 each
6 for £24.00
just £4.00 each
9 for £30.00
just £3.33 each
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Currently the largest allium available, Allium giganteum is a tall ornamental onion which creates an impressive focal point in any garden, with blooms up to 15cm or more across. These spherical balls are made up of small star-shaped flowers in shades of pinkish purple. Growing up to 1.8m tall, this ornamental onion is perfect for the rear or middle of a border where the flowerheads create architectural interest. Allium giganteum, like most, is drought tolerant and can be a useful plant for a gravel garden or tricky sloping site, providing it is shielded from strong winds.Plant in well-drained soil which benefits from full sun for flowers in June and July. A hardy, bulbous perennial which will naturalise in the right conditions for fantastic displays year after year. Also, a valuable inclusion in a vase, either fresh or dried, for dramatic impact in your home.
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Key Information
Latin Name Allium giganteum 20+ bulb size 3 bag
Common Name Giant Onion
Hardiness H5 (-10 to -15°C)
Colour Purple
Type Perennial
Format Bulbs
Position Full-Sun
Height in Maturity (m) 1.80 m
Spread in Maturity (m) 0.30
Soil Conditions Chalk Clay Loam Sand
Aspect East-facing, South-facing, West-facing
Drought Tolerant Yes
Good for pots Yes
Good for Rockeries Yes
Good for wildlife Yes
Good for pollinators Yes
Good for cutting Yes

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Hayloft was founded by Yvonne in 1992. Since then we have grown into one of the UK’s favourite online plant nurseries.

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