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 onions grown vertically on the windowsill, using a common 5 Liter PET 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.

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…

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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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