Küchenzwiebel

Prefers a sunny sheltered position in a rich light well-drained soil. Prefers a pH of at least 6.5. Plants tolerate a pH in the range of 4.5 to 8.3. Onions are best grown in a Mediterranean climate, the hot dry summers ensuring that the bulbs are ripened fully. For best growth, however, cool weather is desirable at the early stages of growth. Plants are frost-tolerant but prolonged temperatures below 10°c cause the bulb to flower. Optimum growth takes place at temperatures between 20 and 25°c. Bulb formation takes place in response to long-day conditions. Plants are perennial but the cultivated forms often die after flowering in their second year though they can perennate by means of off-sets. The onion was one of the first plants to be cultivated for food and medicine. It is very widely cultivated in most parts of the world for its edible bulb and leaves, there are many named varieties capable of supplying bulbs all the year round. This species was derived in cultivation from A. oschaninii. Most forms are grown mainly for their edible bulbs but a number of varieties, the spring onions and everlasting onions, have been selected for their edible leaves. There are several sub-species:- Allium cepa 'Perutile' is the everlasting onion with a growth habit similar to chives, it is usually evergreen and can supply fresh leaves all winter. Allium cepa aggregatum includes the shallot and the potato onion. These are true perennials, the bulb growing at or just below the surface of the ground and increasing by division. Plants can be divided annually when they die down in the summer to provide bulbs for eating and propagation. Allium cepa proliferum is the tree onion, it produces bulbils instead of flowers in the inflorescence. These bulbils have a nice strong onion flavour and can be used raw, cooked or pickled. Onions grow well with most plants, especially roses, carrots, beet and chamomile, but they inhibit the growth of legumes. This plant is a bad companion for alfalfa, each species negatively affecting the other. Members of this genus are rarely if ever troubled by browsing deer. Alliums are typically harvested in late spring to early summer, when the bulbs mature and the tops begin to yellow. Allium species typically flower in late spring to early summer, depending on the species and local climate conditions. Allium species generally have a moderate growth rate, with bulbs typically taking about 100 to 150 days from planting to harvest, depending on the variety and growing conditions.

Edible Parts: Flowers Leaves Root Seed Edible Uses: Bulb - raw or cooked. A very versatile food, the bulb can be 10cm or more in diameter and is widely used in most countries of the world. Eaten raw, it can be sliced up and used in salads, sandwich fillings etc, it can be baked or boiled as a vegetable in its own right and is also commonly used as a flavouring in soups, stews and many other cooked dishes. Some cultivars have been selected for their smaller and often hotter bulbs and these are used for making pickles. Leaves - raw or cooked. There are some cultivars, the spring onions, that have been selected for their leaves and are used in salads whilst still young and actively growing - the bulb is much smaller than in other cultivars and is usually eaten with the leaves. By successional sowing, they can be available at any time of the year. Flowers - raw. Used as a garnish on salads. The flowers are somewhat dry and are less pleasant than many other species[K]. The seeds are sprouted and eaten. They have a delicious onion flavour[K].

Cosmetic Dye Hair Polish Repellent Rust The juice of the plant is used as a moth repellent and can also be rubbed onto the skin to repel insects. The plant juice can be used as a rust preventative on metals and as a polish for copper and glass. A yellow-brown dye is obtained from the skins of the bulbs. Onion juice rubbed into the skin is said to promote the growth of hair and to be a remedy for baldness. It is also used as a cosmetic to get rid of freckles. The growing plant is said to repel insects and moles. A spray made by pouring enough boiling water to cover 1kg of chopped unpeeled onions is said to increase the resistance of other plants to diseases and parasites. 1. Nectary - Flowers rich in nectar and pollen: Yes – Allium species produce flowers rich in nectar and pollen, attracting pollinators like bees and butterflies. 2. Wildlife - Food (Fruit, Seeds, Leaf litter, Shelter, Nesting, Roosting): Yes – Allium species' bulbs, leaves, and flowers are edible and provide food for humans and wildlife. The leaf litter can also provide some habitat, though they are not typically used for nesting. 3. Invertebrate Shelter (Overwintering sites, Leaf litter, Groundcover): No – While Allium plants can provide some ground cover, they are not specifically known for providing significant shelter or overwintering sites for invertebrates. 4. Pest Confuser (Smell): Yes – The strong aroma of Allium species can help deter pests, acting as a natural pest confuser due to their sulfur compounds.

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