Growing Spring onions, also Scallions, Bunching onions, Welsh onion

Jan F M A M J J A S O N Dec
  S   P                

(Best months for growing Spring onions in USA - Zone 5a regions)

S = Plant undercover in seed trays P = Sow seed

  • Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 10°C and 20°C. (Show °F/in)
  • Space plants: Plant close together
  • Harvest in 8-12 weeks.
  • Compatible with (can grow beside): Lemon Balm, Borage, Carrots, Beets, Silverbeet, Lettuce, Amaranth
  • Avoid growing close to: Peas, Beans
  • Spring onions

Can be grown from 'sets' ie seedlings brought on earlier. Spring onions are grown close together and harvested before fully mature.

Do not like to be too dry. Best in a sheltered, sunny spot. If you are growing onions from seed, you can use the 'thinnings' as spring onions

Culinary hints - cooking and eating Spring onions

Can be eaten raw in salads. Often used chopped and sprinkled on Asian stir-fry.

Your comments and tips

29 Apr 20, Peter Minchin (New Zealand - temperate climate)
I have grown spring onions from seeds for years, but mine are never as long as those I see in the shops. I have been transplanting the seedlings, when about 10cm high, into a shallow row , filling the row in and watering well. Should I be planting them like I do leeks, into a deepish hole with the leaves just extending out of this hole?
30 Apr 20, Another gardener (New Zealand - temperate climate)
I grow shallots, far easier to grow. Plant 3 bulbs together 150mm apart, good rich soil and water each day or two. Plenty of sunlight. Easiest thing to grow I reckon. You keep some bulbs from one year for the next year. If you want to stick with spring onions try what you are thinking, don't plant too deep though. Hill the soil up a bit as they grow. Make sure you have good rich soil. The plants will show you, if weak and pale green, they need some N.
06 Apr 20, Todd Williams (USA - Zone 6a climate)
I live in lower Missouri and have giant (5 foot) Chinese salida onion seeds. How and when do I plant them?
24 Feb 20, Liam (USA - Zone 5a climate)
How much space between rows
27 Feb 20, Liz at Gardenate (New Zealand - temperate climate)
You can grow spring onions close together, about 8cm/4 inches between rows
17 Aug 17, NIGEL (Australia - tropical climate)
IS SPRING ONION ANNUAL OR PREANNUAL (perennial?)
16 Aug 19, Arthur (Australia - temperate climate)
I have grown spring onions as perennials for a couple of years now, i trim the tops and outer leaves off to eat and leave them growing. the plants were originally from the supermarket shelf i put the cut bottom root section in water for a month or so before transplanting outside. they just keep growing.
18 Aug 17, Mike (Australia - sub-tropical climate)
Most onions are grown annually. Too much messing around I would imagine to regrow. Otherwise cut the roots off and put in water and they will grow. Google it.
29 Apr 17, Ben (New Zealand - temperate climate)
Why can't you plant near peas or beans? If they are growing upwards and spring onions are at the base but a bit off their root system would that help growing close or it just a i don't like growing with you kinda thing..
01 May 17, Barb (Australia - sub-tropical climate)
Hi Ben, Best to plant something else in between peas/beans and onions. Peas/beans have symbiotic bacteria amongst their roots which fix nitrogen into the soil, while the onion family are antibacterial - hence they fight one another's good points. If you put say a row of leafy greens between the two, then the argumentative roots of the two foes will be separated, and the leafy greens will benefit from both the extra nitrogen plus the extra pest protection of the onions. Win win win.
Showing 1 - 10 of 63 comments

I grow shallots, far easier to grow. Plant 3 bulbs together 150mm apart, good rich soil and water each day or two. Plenty of sunlight. Easiest thing to grow I reckon. You keep some bulbs from one year for the next year. If you want to stick with spring onions try what you are thinking, don't plant too deep though. Hill the soil up a bit as they grow. Make sure you have good rich soil. The plants will show you, if weak and pale green, they need some N.

- Another gardener

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