Allium fistulosum
Winter Onion
Common names: Winter Scallion, Leek Onion, Spring Onion
Photo: Genmewcaugsa · CC BY-SA 3.0 · Source
This description was machine-translated.
Description
The winter onion does not form a thick bulb; instead it provides mild, tube‑shaped scallion stems throughout the year. It is extremely hardy, remaining green under snow when fresh flavor is scarce. As a perennial, it reliably regrows after cutting.
Care instructions
Sow in spring or August directly into a sunny bed; the seed will overwinter for an early spring harvest. Keep the bed weed‑free and water moderately. Trim the tubes just above the soil surface if needed, the plant will regrow from the base and can be divided after several years.
Soil & site
Soil pH
Soil type
humus-rich, well-drained, loamy
Feeding
Light feeder
Companion planting
Good neighbors
carrot family (Apiaceae)
Umbellifers and alliums confuse each other's pests (carrot fly, onion fly).
For example celery rootDillParsleyCarrot fennelCorianderCelery (Stalk Celery) and 18 more species in the catalogue
Source: classic companion planting (DACH-Gartenpraxis)
rose family (Rosaceae)
You can plant garlic and chives under strawberries and roses; their scent repels aphids and other pests.
For example AppleRaspberryClimbing rosePearAroniaBlackberry and 52 more species in the catalogue
Source: Bio-Gärtnerei Mixed Culture Practice
Rather not
legume family (Fabaceae)
particularly well establishedAllium species inhibit the nitrogen‑fixing rhizobia of legumes through their root exudates, which slows their growth.
For example Pole beanBroad beanMarker peaSugar peaRed beanLima bean and 29 more species in the catalogue
Source: basic crop‑rotation rule
nightshade family (Solanaceae)
Onions slow down the growth of nightshade family plants next to potatoes and tomatoes; the classic crop-rotation rule also applies in the bed side by side.
For example TomatoSweet pepperCocktail tomatoEggplantCape gooseberryChili and 8 more species in the catalogue
Source: basic crop-rotation rule
Companion planting is partly traditional gardening lore. Where the reason is known, it is given.
Some of these explanations were machine-translated.
Diseases & pests
1 relevantFrom the knowledge base, automatically linked by affected species. How to spot and prevent them is covered in full in the lexicon.
Delia antiqua
The onion fly (Delia antiqua) lays its eggs on the leaf sheaths of young onion plants, and the larvae then tunnel into the bulb, the neck and the roots.
More on Onion flyNotes from real gardens
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From the magazine
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The long white shaft makes a good leek. How to plant leeks deep, earth them up right, and protect them from leek moth and onion fly with a net.
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August is the month of full baskets: tomatoes, beans and onions come in by the crateful. Now you preserve what you can't eat straight away and sow the greens that will see you through winter. That's how you stay well fed through the cold months.
Planting or sowing onions: three routes to your own harvest
Three routes lead to your own onion: the fast set, the cheap seed onion and the early overwintering onion. Here they stand side by side, plus the trick against bolting and the classic bed duo with the carrot.