Growing Spring Onions at the Allotment

Growing Spring Onions at the Allotment

As part of the allium family, spring onions; also known as salad onions or scallions are easy to grow and can also be grown in containers. They have a strong and tangy flavour adding heat to salads as well as stir-fry and other hot dishes.

You can start sowing spring onion seeds in early spring indoors or sow directly outdoors from March-April. You can dedicate rows for your spring onions, however being quite a small plant, they can be fitted in with other compatible plants, as long as they have enough space and light and are kept weed-free. 

It is best to hand-weed around growing spring onions and water regularly during dry spells.

Sow thinly little and often for a continuous crop throughout the summer; you can thin them out if necessary, once the seedlings appear.

For early or late sowings, choose a more hardy variety and you can sow them indoors. Alternatively, late sowings will be slow-growing over-wintering and be ready to harvest the following spring.

Spring onions are fairly quick to grow and are mostly trouble-free but they do grow best in rich, well-drained soil.

Spring onions will be ready to pull up when they are approximately 6 inches tall. If they are left longer for the bulb to grow larger, the taste will be stronger.

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Growing Spring Onions in Summary

Sowing Spring Onions

  • Sow thinly from early spring
  • Sow hardy varieties for over-wintering
  • Can be grown in containers

Growing Spring Onions

  • Hand-weed around spring onion plants
  • Water during dry spells
  • Thin out if necessary

Harvesting Spring Onions

  • Harvest throughout the season when they reach approximately 6 inches
  • More mature ones will be stronger with bigger bulbs
  • Can be eaten cooked or raw