Spring Onions

Spring Onions

Spring onions are also referred to as salad onions. This is because they are versatile in their use. For instance, you can use it in stir-fries, soups and garnish apart from using them on salads, of course. If you grow them in your vegetable plot, the taste is so different from shop-bought ones.

We recommend you sow the salad onions in small batches, but frequently. It will help you enjoy the salad onions throughout the autumn and summer. Likewise, you can get the spring crop when sowing the winter-hardy type in August. 

Here’s a tip for you: I always sow the spring onions next to carrots – or as near to carrots as I possibly can. This will confuse the carrot fly.

I actually found this tip out when I accidentally sowed carrot seeds on top of some drills where my wife had some early carrots. When both plants started to emerge, we were each left wondering what on earth was going on before I realised my error. Finally, I owned up like a man and was banished to the potting shed (i.e., the doghouse). 

Still, I can think of much worse ways and places to idle away some time in! My potting shed and greenhouse is my paradise.

Take a look at where I while away my time, escaping from the world. Its not much, but to me it is paradise

spring onions
My piece of heaven

So when sowing carrots, scatter a few spring onion seeds around/in the drills (only a few) to protect your carrots.

Sowing Spring Onions

The best time to sow the spring onion starts in March and ends in September. Below are some tips for planting the spring onions:

  • Sow the seed thinly in a depth of 0.5 inches.
  • Ensure you leave a distance of 4 inches among the rows.
  • Sow the seeds every two weeks. In this way, you can enjoy the onions in summer.
  • Sow the seeds in early autumn and late summer if you want to harvest the spring onions in spring.  

Growing Spring Onions

  • Thin the seedlings until there is 1 inch of space between them.
  • Water the dry soil in dry weather
  • Mulch the plants to retain moisture and prevent weeds

Harvesting Spring Onions

So, now the question is: When you can harvest the spring onion. The best to gather spring onions is when the plants are small and young. The perfect size of the salad onion that needs harvesting is 6 inches in length with 0.5-1 inches bub size.

With repetitive sowing, you can harvest the plant from spring to throughout the autumn.  

spring onions

Common problems

Onion white rot

It’s a fungus born in soil. It causes the foliage yellowing and wilting. Not only this, but it also causes damage to the bulb beneath the ground and rots the roots.  

Firstly, it will appear as fluffy white fungus on the bulb base. Afterwards, it turns into round and black structures.  


Onion white rot cannot be cured chemically. Therefore, the best tip to avoid white rot is to prevent the transportation of cloves in contaminated soil. Moreover, you have to take special care where cross-contamination is frequent.  

Onion downy mildew

It is also a fungal disease that infects bulbs and foliage. The most common behind its spread is damp conditions.


  • Ensure plenty of light and ventilation at the planting space
  • Remove the weeds regularly
  • Don’t water overhead
  • Remove the infected leaves

Would you like some fresh ideas on how to use spring onions other than in a salad? Take a look at Delish. They have 20 ways to use them.

Did you know that there are numerous varieties of spring onions to choose from? Take a look at just some of them below, and grow a different variety from the usual ones!

For more information or assistance with this article, or if you want to add something that you feel is relevant, we would love to hear from you via the Contact Us page.

07/13/2021 | Vegetables | 0 Comments

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