Allium giganteum

Allium giganteum, common name giant onion, is an Asian species of onion, native to central and southwestern Asia but cultivated in many countries as a flowering garden plant.[4][5] It is the tallest species of Allium in common cultivation, growing to 1.5 metres (4.9 ft).[6]

Giant onion
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Allioideae
Genus: Allium
Species:
A. giganteum
Binomial name
Allium giganteum
Synonyms[2][3]

Allium procerum Trautv. ex Regel

In early to midsummer, small globes of intense purple umbels appear, followed by attractive fruiting umbels. A popular cultivar, 'Globemaster', is shorter (80 centimetres (31 in)) but produces much larger, deep violet, umbels (15–20 centimetres (5.9–7.9 in)). Both varieties have been granted the Royal Horticultural Society's Award of Garden Merit.[7][8][9]

In nature, the species is found in Iran, Afghanistan, Turkey, Turkmenistan, Tajikistan, and Uzbekistan.[3]

  • Flower opening
  • Flower fully open

References
  1. Eduard August von Regel. 1883. Gartenflora 32: 91.
  2. The Plant List
  3. Kew World Checklist of Selected Plant Families
  4. Regel, Eduard August von 1883. Gartenflora (1883) 32: 91
  5. Tropicos, Allium giganteum Regel
  6. Missouri Botanical Garden: Allium giganteum
  7. Allium giganteum Royal Horticultural Society
  8. Allium 'Globemaster' Royal Horticultural Society
  9. Plants For A Future: Allium giganteum
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