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How to Grow Spring Onions In Water

Reading Time: 3 minutes

Want to know how to grow spring onions in water? Then follow these easy instructions in this quick ‘How to’ post. This could be fun for the kids as well so why not get them involved.

Growing spring onion (Allium fistulosumplant cuttings in water are easy, and best of all it will save you money on any further ‘spring onion’ costs in the long run. We all know how important that can be these days. 

All you need to get going is a clean see-through jar (so you can monitor growth), some spring onion trimmings  (this is the bulbous white root + 1in (25mm) of the greenleaf) and some clean tap water.

How to grow spring onions in water in 4 easy steps

Preparing Spring Onions For Growing In Water

Ensure though that when you prepare spring onions for growing in the water you allow a little of the green leaf to remain, the rest of the ‘green’ you can cut and eat in salads or sprinkle on your ‘pizza’. Also try and get some of the bulbous onion with some roots already showing, this will help start you off.

Start by chopping the spring onion bulbs to around 30-40 cm (1¼ – 1½) from the roots, then place these cut bulbs (several pieces) in your jar or small pot in a sunny spot on a kitchen sill or similarly warm sunny area. Always try to avoid placing them in ‘direct’ sunlight though as ‘algae’ may grow in the water, this will cause you some problems. 

To be safe the water should always be clear and not cloudy this will give you the best opportunity for your spring onions to grow.

If you leave them now, you will be surprised how your spring onions will sprout very quickly, and you should see in just a few days or less than a week, the roots starting to grow and those green leaves also starting to shoot up.

As we advised, change as needed, but change the contents completely not in part, usually around every 2-3 days but do not overwater, just keep an eye on the water in the jar.

How to Grow Spring Onions In Water: One of the easiest of vegetables to grow in water for an endless supply of spring onions

Here We Go Again

If you give your spring onions a chance to regrow, you can snip them as before at the base as you need them and start the process all over again. If you have a good supply and no need for them right away why not try freezing your spring onions?

Growing spring onions in water is one  great way to save money on your food bill, every little helps. But it’s not all plain sailing. With this post, you will discover what you need to know in order to successfully grow spring onions without soil.

You will find out the best position to place your pots on your windowsill (or wherever you plan to grow your onions) as well as some tips and tricks to help get the most out of this method. In the meantime, good luck and happy onion growing.

If this post has helped you in any way, please share it with your family and garden-loving friends or anybody looking to know How Grow Spring Onions in Water?

Finally, you can always pop over to our FAQ page. Its full of information on a whole host of gardening tips and tricks, queries and gardening jargon you may need to know about a whole host of things for the home and garden. Find out more about planting, gardening, and a whole host of other answers to your home and garden questions and queries.

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