Allium giganteum Regel
Ornamental onion
Kingdom Plantae Plants, but not fungi, lichens, or algae
Subkingdom Tracheobionta Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division Magnoliophyta Flowering plants, also known as angiosperms
Class Liliopsida Monocots (plants with a single seed leaf); includes the lily family
Subclass Liliidae Includes lilies, orchids, and many others
Order Asparagales A diverse group that includes asparagus
Family Amaryllidaceae Amaryllis family—plants that grow from bulbs. Includes onions and many others
Genus Allium Onions, leeks, shallots, garlic, scallions, etc.
Species giganteum
About plant names...
Giant onions are native to central Asia. They reach 3-5′ (91-152 cm) in height, and about 1½′ (45 cm) in width. It has
large bulbs, 2-3″ (5-7.6 cm) in diameter. It is popular with gardeners for its stunning spherical purple-pink flowerheads
three or four inches in diameter. Each flowerhead is supported by a smooth, cylindrical, unbranched stem.
Identification: The
flowerheads are unmistakable, white or pink, made up of hundreds of tiny, six-petaled flowers.
If the plant is not in bloom,
the leaves form a basal rosette looking a bit like thick blades of grass up to 1½′ (45 cm) long.
Online References:
Floridata.com
The Missouri Botanical Garden
Plants for a Future, a resource and information centre for edible and otherwise useful plants
Plants.ces.ncsu.edu
Wikimedia Commons
6/17/2012 · Coastal Maine Botanical Gardens, Boothbay, Maine · ≈ 1 × 1½′ (34 × 52 cm)
5/27/2016 · Acton Arboretum, Acton, Massachusetts
6/18/2012 · Ogunquit, Maine · ≈ 9 × 14″ (23 × 35 cm)
Older scientific or horticultural names
Allium procerum Trautv. ex Regel
Allium giganteum description by Thomas H. Kent, last updated 25 May 2020.
© FloraFinder.org. All rights reserved.
6/29/2008 · MacDonalds, Westford, Massachusetts · ≈ 16 × 11″ (41 × 27 cm)
5/27/2016 · Acton Arboretum, Acton, Massachusetts
6/17/2012 · Coastal Maine Botanical Gardens, Boothbay, Maine · ≈ 1½ × 1′ (52 × 34 cm)
5/27/2016 · Acton Arboretum, Acton, Massachusetts
6/29/2008 · MacDonalds, Westford, Massachusetts · ≈ 1½ × 1′ (46 × 31 cm)
7/6/2007 · Holden, Massachusetts · By Philip A. Despo ID is uncertain
Range: Zones 5-8:
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