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FutureStarrOnion Shrub in purpule
The common onion has one or more leafless flower stalks that reach a height of 75–180 cm (2.5–6 feet), terminating in a spherical cluster of small greenish white flowers. The concentric leaf bases of the developing plant swell to form the underground edible bulb. Most commercially cultivated onions are grown from the plant’s small black seeds, which are sown directly in the field, but onions may also be grown from small bulbs or from transplants. Onions are very hardy and can survive in a wide range of growing conditions. The bulbs vary in size, shape, colour, and pungency, though warmer climates generally produce onions with a milder, sweeter flavour than do other climates. The onion’s characteristic pungency results from the sulfur-rich.
Most whole onions are slightly dried before marketing, making their skins dry and paper-thin. Onions are also available in various processed forms. Boiled and pickled onions are packed in cans or jars. Frozen onions are available chopped or whole, and bottled onion juice is sold for use as a flavouring. Dehydrated onion products have been available since the 1930s; such products include granulated, ground, minced, chopped, and sliced forms. Onion powder is made by grinding dehydrated onions and is sometimes packaged in combination with salt. Dried onion products are used in a variety of prepared foods and are also sold directly to the consumer for use as condimentsPearl onions are not a specific variety but are small, round, white onions harvested when 25 mm (1 inch) or less in diameter. They are usually pickled and used as a garnish and in cocktails. Small white onions that are picked when between 25 and 38 mm (1 and 1.5 inches) in diameter are used to flavour foods having fairly delicate taste, such as omelets and other egg dishes, sauces, and peas. They are also served boiled or baked.
Onion Maggots: Cover your emerging onion crop with a fine mesh netting. Seal it by mounding soil around the edges. The onion maggot likes to lay its eggs at the base of plants, so the netting should prevent that. You should also keep mulch away because the insects like decaying organic matter, and make sure you completely harvest your onions as the season progresses. Onion maggots are usually a problem in very rainy periods, so these precautions may be unnecessary if you have a dry season.Onions are sensitive to daylength, so varieties are generally classified into three categories: Long-day, short-day, and day-neutral. The border between long- and short-day varieties lies roughly at 36 degrees north latitude (aka, the 36th parallel)—north of this line, plant long-day varieties; south of it, plant short-day varieties. Day-neutral varieties can be grown with success anywhere! (Source: www.almanac.com)