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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 ...
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The twincrest onion is a perennial at altitudes ranging from 2000 to 2900 meters. It grows to between ten and forty cm high. The onion bulbs are round and egg-shaped. The bulbs have a light tint and when cut, have a powerful odor. The flower heads are about 10–15 mm in length. The flowers are varying shades of purple or pink.
Gardeners can take a cue from nature and use winter as a time to plant seeds of a variety of annual and perennial flowers. Winter is also a great time to plant dormant trees and shrubs, including ...
Vernalization (from Latin vernus 'of the spring') is the induction of a plant's flowering process by exposure to the prolonged cold of winter, or by an artificial equivalent. After vernalization, plants have acquired the ability to flower, but they may require additional seasonal cues or weeks of growth before they will actually do so.
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.
Keep your garden vibrant year-round with the 22 best winter-blooming flowers that thrive in the cold. Learn how to prepare your landscape for winter blooming.
Allium flavum, the small yellow onion [4] or yellow-flowered garlic, [5] is a species of flowering plant in the genus Allium. A bulbous herbaceous perennial , it is native to the lands surrounding the Mediterranean , Black , and Caspian Seas , from areas like France and Morocco to Iran and Kazakhstan .