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ALLIUM giganteum
Commonly known as Giant ornamental onion
Giant mauve drumstick-shaped flowers
Further Reading....
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Shades of pinkAll shades of pink through to Carmine (red)
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Height1.5m (5ft)
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Spread20cm (8in)
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Bulb/Corm or rhizomatous perennialBulbous perennial. Produces dense umbels 10cm (4in) across of 50 or more flowers with prominent stamens.
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HerbaceousEarly in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.Strap-shaped, pale-green basal leaves 30-100cm (12-39in) long which wither before flowering.
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Very hardyHardy in the severest continental climates including exposed upland locations in the UK. Plant can withstand temperatures < -20 (-4°F)
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Full sun
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Partial shade
ALLIUM giganteum
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional FeaturesGood to knowWildlife plant - nectar and pollen for insects.Pests & DiseasesOnion fly, white rot, downy mildew.Place of originCentral Asia.
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Flower ShapeStar-shaped
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HardinessFully hardy
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Seasonal InterestAutumnSummer
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Soil ConditionsFertile moist well-drained soilWill tolerate dry conditions
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Toxic - Category B - CAUTIONToxic if eaten(People & Pets)
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WildlifeBee friendlyButterfly friendlyRabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Alliums - Growing Guide
Bulbs - Care Guide
- Protecting general spring bulbs - Video Tip ondemand_video
- Bulbs and Grass Cutting - Video Tip ondemand_video
- Planting Daffodil bulbs for spring colour - Video Tip ondemand_video
- Planting Daffodil bulbs - Indoors and Outdoors
- Daffodils Deadheading / Pruning - Video Tip ondemand_video
- Planting Snowdrops - in winter
- Lifting and dividing Snowdrops - Video Tip ondemand_video
- Planting Alliums for spring colour - Video Tip ondemand_video
- Planting Hyacinths in winter - Video Tip ondemand_video
- Planting Hyacinth bulbs - In winter
- Planting Tulip bulbs for spring - Video Tip ondemand_video
Herbaceous Plants - Video Collection
- Dividing Herbaceous Perennials - Video Tip ondemand_video
- Spring Planting Osteospermums - Video Tip ondemand_video
- Dividing Summer Perennials - Video Tip ondemand_video
- Dividing summer flowering Hemerocallis - Video Tip ondemand_video
- Summer propagation - Video Tip ondemand_video
- Self-seeding aquilegia - Video Tip ondemand_video
- Supporting Plants - Video Tip ondemand_video
- Dead heading meconopsis - Video Tip ondemand_video
- Dead heading Delphiniums - Video Tip ondemand_video
- Feeding herbaceous peonies - Video Tip ondemand_video
- Overpotting Problems - Video Tip ondemand_video
1.5m (5ft)
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20cm (8in) |






















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