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Spring Onion in the GardenTags plant encyclopedia

Allium fistulosum

 

Spring Onion

Spring onions, also known as scallions, green onions, or salad onions are actually very young onions, harvested before the bulb has had a chance to swell. The white bulb and the green leaves are edible. The flavour is similar to onion, but milder.

Contributed by @mitchemjack

 
plant Features
  • Spring Onion likes full sun

    Full sun

  • Spring Onion likes occasional watering

    Occasional watering

  • Spring Onion is a little frost hardy: 32f (0°c)

    A little frost hardy: 32F (0°C)

  • Spring Onion likes moist and free draining

    Moist and free draining

 
plant information

Common name

Spring Onion

Latin name

Allium fistulosum

type

Vegetable

family

Amaryllidaceae

ph

7.0 - 8.5 Acid - Neutral

  • Light

    Spring Onion likes full sun

    Full sun

  • Frost

    Spring Onion is a little frost hardy: 32f (0°c)

    A little frost hardy: 32F (0°C)

  • Soil

    Spring Onion likes moist and free draining

    Moist and free draining

  • Water

    Spring Onion likes occasional watering

    Occasional watering

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When to harvest

full grown dimensions

The size of a fully grown Spring Onion is 0.10meters x 0.30meters 0.10 M 0.30 M

Allium fistulosum

Spring onions, also known as scallions, green onions, or salad onions are actually very young onions, harvested before the bulb has had a chance to swell. The white bulb and the green leaves are edible. The flavour is similar to onion, but milder.


Propagation by seed indoors in Spring

From Early Spring TO Early Spring

Sow onion seed thinly in seed-trays or modules or direct in a prepared greenhouse border, in early Spring, ready to transplant to final positions in late spring.

 

Planting outdoors in Spring

From Mid Spring TO Late Spring

Plant out to final positions in mid to late spring 6" between plants in rows 12" to 15 " apart, in prepared ground, limed to keep soil neutral to alkaline

 

Propagation by seed in late Summer

From Late Summer TO Early Autumn

For Japanese onions sow in final positions, in prepared beds, to establish themselves before the first frosts. Do not plant too early, because too much fresh growth will cause bolting (going to seed) next Spring. Aim for not more than three true leaves before frosts.

 

Planting onion sets outdoors

From Early Spring TO Mid Spring

Plant out onion sets in early spring in well prepared beds, limed late in the previous year, 6" apart in rows 12" to 15" apart.

 
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