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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…

onions

…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.

CUT BOTTLE

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

LAYER

TOP VIEW

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

NEXT, water it…

WATER

AND FINALLY, set it on your windowsill…

onions on windowsill - Copy

And watch daily as your onions grow…

125983-c332e-40881528-m750x740-uc8bb7

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

125983-acd6f-40881545-m750x740-u27f90

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?

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660 responses

  1. Ray Gallo

    I tried buying small onion in the store but they don’t work you need onion sets or onion plants.

    April 23, 2017 at 8:49 pm

    • Christine Madrishin

      thank you i just asked the same question

      May 31, 2017 at 3:00 pm

      • yes, you can use onion sets

        July 8, 2017 at 1:15 pm

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  3. Christine Madrishin

    could you use a strawberry pot instead of cutting thru plastic?

    May 31, 2017 at 2:57 pm

  4. Christine Madrishin

    can you use onion sets?

    May 31, 2017 at 2:58 pm

  5. krishnanu

    i heard water being stored on plastic bottle becomes poison after sometime……so is it a risk to use plastic. please reply ha……otherwise very great idea and thanks for sharing it

    July 29, 2017 at 3:17 pm

  6. Neska

    It is a fantastic idea. Thank you for sharing it. I thought that veggies needed to grow in the ground to absorb nutrients…is this right?… or am I missing something that I am not aware?
    Please let me know…
    Thanks

    August 5, 2017 at 2:47 pm

  7. Charlene

    Do you use the green sprouts or the actual onion bulb I’m confused

    August 15, 2017 at 10:12 am

  8. imelda

    How do I get the onion out of the bottle once it has grown larger than the hole that was originally made ? do you cut the plastic ?

    September 4, 2017 at 10:58 am

    • yes

      November 12, 2017 at 8:50 am

    • Pat

      You don’t eat the actual onion. You just cut and use the green sprouts. After cutting, they will regrow.

      January 2, 2018 at 12:07 am

  9. nader

    good for you, interesting, it is also decorative

    November 14, 2017 at 5:43 pm

  10. Maureen

    I think this is a great idea. Going to try it in my caravan will save space. Thank you. M

    November 27, 2017 at 9:44 am

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  13. Mary

    Where do I buy onion bulbs

    January 4, 2018 at 4:59 pm

    • pretty much anywhere, even online like a seed company. just search onion bulbs for sale and it should show you your options

      January 9, 2018 at 11:42 pm

  14. Mary

    Where do I buy onion bulbs

    January 4, 2018 at 4:59 pm

    • Ray Gallo

      You can buy onion sets at Home Depot or Lowe’s

      January 10, 2018 at 2:55 am

  15. Any store that sells seeds or groceries will have onion sets. I get mine at Wal-Mart or Super Store.

    January 10, 2018 at 3:40 pm

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  17. Thangali Rajan

    Om. Does this not require any manure ?

    January 29, 2018 at 1:41 pm

  18. I don’t get it, this isn’t technically regrowing the onion right? Why not just put green onions in a bottle with water and accomplish the same thing in a less messy manner?

    February 4, 2018 at 4:43 pm

  19. Tess

    Hi, once the onion has grown and you pick for use, will another onion grow to replace the picked one or do you have to keep planting more onions Inside?

    March 1, 2018 at 10:11 pm

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