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Growing Spring Onions

How to grow spring onions (Scallions) in containers, garden beds and allotments

 

Spring Onions

Family/Latin Name

Allium  - fistulosum

Type of Plant

Bulb - Crop Rotation Group = Others

Suitable for

Garden Beds, Allotments, containers


Pests & Diseases    Companion Plants    In the Kitchen

See also:-  Vegetable Growing Glossary  |    Container Growing  | Buying Seeds & Plants

 

Plant Dimensions

Height Up to 30cm/12" - Spread  up to 7.5cm/3"

Yield per plant 1 Spring Onion

Time between sowing and harvesting

12 weeks

Where to Sow

Outdoors in open ground or in containers

Sowing time

March to July  - temperature   +10C/50F

How to Sow

12mm/½" deep - very thinly -  in rows 30cm/12" apart or in groups/blocks. Succession sowing (sowing a small amount every week or so) ensures a ready supply of young sweet specimens throughout the season.

 

After Germination

Thin seedlings to 5cm/2".  Keep the soil moist but not very wet and weed free.

Growing on - in Pots

Water  in dry weather and feed once or twice during the growing season.

Growing on - in open ground

Water  in dry weather and feed once or twice during the growing season. Keep weed free

Aftercare

As above

Harvesting

Pull as and when needed. Harvesting can start once the bulbs reach 12mm/¼" in thickness

Pests and Diseases

Companion Plants

Not often severely attacked due to the short growing period.
Onion Fly
Indications Yellow drooping leaves and maggots in the base of the bulbs
Treatment None. Lift and burn infected plants
Prevention Organic
1. Practise crop rotation.
2. Destroy any thinnings or broken leaves
3. Firm the soil around young plants very firmly
Chemical
Spray young plants with an insecticide containing chlorpyrifos
Stem and Bulb Eelworm
Indications Young plants leaves become swollen and twisted. Bulbs have a soft feel to them and often split at the base. The worms are not visible to the naked eye.
Treatment None - lift and burn infected plants
Prevention Practice crop rotation
White Tip
Indications Tips of leaves turn white and papery, spreading downwards
Treatment Organic
Lift and destroy badly infected plants
Chemical
Spray with an insecticide containing Dithane as soon as you see the first signs of disease
Prevention Practice crop rotation
Downy Mildew
Indications Yellow patches on leaves with a greyish mould underneath
Treatment Organic
Remove the infected leaves and apply an organic copper spray/dust to diseased and surrounding plants every 7-10 day
Chemical
 Remove the infected leaves and spray with Dithane at first sign of attack
Prevention Avoid damp or humid sites and overcrowding.
Practice crop rotation.

 

Companion Flower Graphic


Grow Beetroot, Carrot, Lettuce, Cabbage Family
 close by.

 

 

Create a bio-diverse environment by planting flowers nearby to attract bees, ladybirds and other "friendlies". 

 

To learn more about companion planting click here.

In the Kitchen

Storage:  Loose or in net bags for up to 2 weeks in the refrigerator.

Preparing:  Cut off the root then peel the papery skin off. It may be necessary to take off an extra "layer" to get to the  unblemished bulb. Often left whole or halved lengthways. Larger specimens should be sliced.

Cooking

Spring onions, also known as bunching onions or scallions, are generally eaten raw in salads. Both the green and white parts are edible However, they can be cooked and are especially suitable for quick dishes such as stir-fries or omlettes.

For more preparation and cooking information about spring onions plus lots of  recipes visit our sister site www.recipes4us.co.uk.

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