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The plant takes the form of a large tuft of onion-like rounded hollow leaves up to 30 centimeters (12 in) long. The inflorescence is a panicle with widely spaced flowers. Each flower is 5 to 12 millimeters wide with six tepals which are generally white or very pale pink with a neat central longitudinal stripe of brown to reddish-purple. The ...
Onions, in particular, produce a sulfur product that acts as a lacrimator, or a substance that causes tearing: “This volatile chemical escapes from the damaged onion into the air, and lands in ...
Weed control is a type of pest control, which attempts to stop or reduce growth of weeds, especially noxious weeds, with the aim of reducing their competition with desired flora and fauna including domesticated plants and livestock, and in natural settings preventing non native species competing with native species.
"Onion weed" may refer to several species of plant that are either related to onions, have onion-like bulbs or flowers, or smell oniony or garlicky, and that are considered weeds outside their native ranges. These include: Allium neapolitanum, Neapolitan garlic. Allium triquetrum, three-cornered leek. Native to south-western Europe and north ...
A late summer- to autumn-blooming plant, [6] A. tuberosum is one of several Allium species known as wild onion and/or wild garlic that, in various parts of the world, such as Australia, are listed as noxious weeds or as invasive "serious high impact environmental and/or agricultural weeds that spread rapidly and often create monocultures". [14 ...
Allium vineale (wild garlic, onion grass, crow garlic or stag's garlic) is a perennial, bulb-forming species of wild onion, native to Europe, northwestern Africa and the Middle East. [2] The species was introduced in Australia and North America , where it has become an Invasive species .
Nothoscordum × borbonicum, also known as honeybells, [1] fragrant false garlic [2] and onion weed, is a bulbous perennial. It has become naturalized as a nearly cosmopolitan weed . [ 3 ] The whitish flowers are sweetly scented.
Companion planting of carrots and onions. The onion smell puts off carrot root fly, while the smell of carrots puts off onion fly. [1]Companion planting in gardening and agriculture is the planting of different crops in proximity for any of a number of different reasons, including weed suppression, pest control, pollination, providing habitat for beneficial insects, maximizing use of space ...