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]
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] In cultivation in the US, it performs well in USDA hardiness zones 6–10.[10]
Eating flowers, seeds, leaves, and stems can cause nausea, vomiting, and diarrhea due to the sulfides they contain.[11]
Flower opening
^Eduard August von Regel. 1883. Gartenflora 32: 91.
^The Plant List
^ abKew World Checklist of Selected Plant Families
^Regel, Eduard August von 1883. Gartenflora (1883) 32: 91
^Tropicos, Allium giganteum Regel
^Missouri Botanical Garden: Allium giganteum
^"Allium giganteum Royal Horticultural Society". Archived from the original on 2014-03-26. Retrieved 2012-06-13.
^"Allium 'Globemaster' Royal Horticultural Society". Archived from the original on 2014-03-26. Retrieved 2012-06-13.
Alliumgiganteum, common name giant onion, is an Asian species of onion, native to central and southwestern Asia but cultivated in many countries as a...
garden vegetables. Many Allium species and hybrids are cultivated as ornamentals. These include A. cristophii and A. giganteum, which are used as border...
Allium pauli Vved.) Allium sergii Vved. Type Section Compactoprason R.M.Fritsch Subsection Erectopetala F. O. K Hass. Alliumgiganteum Regel Type (section...
of the Amaryllis family (Amaryllidaceae). It comprises a single genus, Allium, distributed in temperate zones of the Northern Hemisphere. Characterised...
simple umbel with the greatest number of flowers is Flowering Onion (Alliumgiganteum)[Alliaceae] of the Himalayas. Mr. James N. Giridlian, a bulb dealer...
H I J K L M N O P Q R S T U V W X Y Z Allium siculum Agapanthus (Blue White and Dwarf) Albuca nelsonii Allium tuberosum Alocasia (Elephants Ears) Alstroemeria...
alliums he identified bear his name, e.g., A. giganteum Regel and A. rosenbahianum Regel. Many alliums can be viewed in the Northern Yard of the garden...
basal plate, roots from the underside. Genera with true bulbs are Muscari, Allium, Tulipa and Narcissus. A corm is a short, vertical, swollen underground...
summit of the Oak Grove trail and westward. Sequoia tree (Sequoiadendron giganteum (Lindl.) Buchholz). A single tree planted behind the Browse guard station...
coast ranges. The state tree of California. Giant sequoia (Sequoiadendron giganteum) - in the Sierra Nevada Mountains. Bishop pine (Pinus muricata): coastal...
Retrophyllum minus Sequoia sempervirens, coast redwood Sequoiadendron giganteum, giant sequoia Taxus chinensis, Chinese yew Taxus contorta, West Himalayan...
savianum, Sisymbrium cavanillesianum and S. supinum Campanulaceae: Asyneuma giganteum, Jasione crispa subsp. serpentinica and J. lusitanica Caryophyllaceae:...
Global Information
Flower opening