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Growing Onions Vertically On The Windowsill

postheadericon One for the enthusiast

How nice would it be to just be able to pluck fresh green onions from the soil whenever you need them? Nothing beats fresh onions for your salads, dips or soup. But how can you ensure a supply of fresh onions at hand all the time?

Sure, onions are available all year round from the supermarket, but they are hardly fresh and there’s almost always no way to know for sure where they came from.

Gardeners of course will simply grow them but some simply have problems with available space.

I came across an image of spring onions grown vertically on the windowsill, using a common 5 Liter PBS bottle, which I thought was a practical, space-saving and green way to grow onions. I posted the image on our Facebook Page and a few people asked how it was done…


…and since I was curious myself, I did a bit of research and this is what I found:

FIRST, you need a planting vessel:

plastic bottles

NEXT, you need to remove the neck of the bottle then cut holes around it. You can use a scissor or a heated metal tool to make the holes. Make sure the holes are just the right for the onion bulbs.


NEXT, fill the bottle with layers of onion sprouts and soil.



Keep adding layers until you reach the top of the container.

NEXT, water it…


AND FINALLY, set it on your windowsill…

onions on windowsill - Copy

And watch daily as your onions grow…


In no time, you’ll have something like this:


So the next time you want to add some garnish to your food, sweet spice to your soup, to whip up a savory dish or to make a nice, crunchy salad, all you’ll need to do is pluck some from your vertical onion garden.

And you don’t even have to worry about storing them.

Wouldn’t this make a great project?

585 responses

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  9. Toni

    Hello thanks for sharing. Is there other veggies. I can grow in this manner?

    January 10, 2016 at 8:51 pm

  10. Pingback: Grow Fresh Green Onions Any Time Of Year In A Plastic Bottle | Lifehacker Australia

  11. Royce

    Something to consider about the smell of onion in the house is that it might keep some of the regular bugs that like to come in from staying. An example is mosquitoes don’t like lemon grass.

    January 12, 2016 at 5:17 pm

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