Flower Properties
| Property | Value |
|---|---|
| English Name | Giant Onion |
| Scientific Name | Allium giganteum |
| MainColor | Magenta |
| PlantType |  Herb |
| Distribution |  Cultivated |
| Season Found | May (Jun - Jul) |
| ImageUrl | Allium-001 |
| Photographer | DP |
| Location Found | Abbots Langley |
| Country Found | UK |
| Last Updated | 01 September 2026 |
| Photo Quality | B |
Flower Details
Description
A striking bulbous perennial known for its tall stems topped with large spherical clusters of small purple flowers in late spring and early summer. Popular in ornamental gardens for dramatic architectural interest.
Distribution
Native to Central and Southwestern Asia. Cultivated widely in the UK but not naturalised.
Medicinal/Other Uses
Closely related to culinary onions and garlic but grown purely for ornamental purposes.
Edibility
Not edible – unlike edible onions, it is cultivated solely for display.
Human Toxicity
Mildly_Toxic
Contains compounds similar to those in garlic and onions, which are toxic to cats and dogs, causing hemolytic anemia if consumed in quantity.
Pet Toxicity
Highly toxic – ingestion can damage red blood cells in cats and dogs.
Active Compounds
Thiosulfates, organosulfur compounds.
Quality Issue
Mostly flower