Allium tanguticum is native to Western China and prefer temperate climate. Allium tanguticum is an ornamental onion that produces dense clusters of lavender/purple flowers above dark green narrow leaves.
Allium is a monocot genus of flowering plants, informally referred to as the onion genus. The generic name Allium is the Latin word for garlic. The genus, including the various edible onions, garlics, chives, and leeks, has played a pivotal role in cooking worldwide.
The genus contains hundreds of distinct species; many have been harvested through human history, but only about a dozen are still economically important today as crops or garden vegetables. Many others are cultivated as ornamental plants.
Many Allium species have been harvested through human history, about a dozen are economically important as crops or garden vegetables. These include onions [Allium cepa], French shallots [Allium oschaninii], leeks [Allium ampeloprasum], scallions [various Allium species], and herbs such as garlic [Allium sativum] and chives [Allium schoenoprasum]. Others are cultivated as ornamentals.
Photo: Singapore Garden Festival, Singapore, 20120713
Source: Wikipedia, VanDusen Botanical Garden
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