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Allium flavum (yellow) and Allium carinatum (purple). Allium is a large genus of monocotyledonous flowering plants with around 1000 accepted species, [4] [5] making Allium the largest genus in the family Amaryllidaceae and amongst the largest plant genera in the world. [6]
Onions are a cool-weather crop and can be grown in USDA zones 3 to 9. [67] Hot temperatures or other stressful conditions cause them to "bolt", meaning that a flower stem begins to grow. [68] Onions are grown from seeds or from partially grown bulbs called "sets" or starter bulbs. Onion seeds are short-lived and fresh seeds germinate more ...
Allium fistulosum, the Welsh onion, also commonly called bunching onion, long green onion, Japanese bunching onion, and spring onion, is a species of perennial plant, often considered to be a kind of scallion. The species is very similar in taste and odor to the related common onion, Allium cepa, and hybrids between the two (tree onions) exist.
Green onions can also be placed in a glass filled with water to cover the root and left on the counter. Chives should also be washed and dried before storing. You can either dice them up or wrap ...
Each stem produces an umbel inflorescence of 4–19 flowers during winter and spring. [7] The tepals are 10–18 mm (13 ⁄ 32 – 23 ⁄ 32 in) long and white, but with a "strong green line". [8] Each plant has two or three narrow, linear leaves, each up to 15 cm (6 in) long. [7] The leaves have a distinct onion smell when crushed.
The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous (rarely rhizomatous) flowering plants in the monocot order Asparagales. The family takes its name from the genus Amaryllis and is commonly known as the amaryllis family. The leaves are usually linear, and the flowers are usually bisexual and symmetrical, arranged in ...
With lance-shaped grey-green leaves up to 30 cm long, in early summer it produces masses of star-shaped bright yellow flowers in dense umbels. The cultivar 'Jeannine' has gained the Royal Horticultural Society's Award of Garden Merit. [4] The leaves die in mid-summer. An onion-like fragrance is released when the leaves are crushed. [10]
Scallions (also known as green onions and spring onions) are edible vegetables of various species in the genus Allium. Scallions generally have a milder taste than most onions . Their close relatives include garlic , shallots , leeks , chives , [ 1 ] and Chinese onions . [ 2 ]