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How to Grow Green Onions on Your Windowsill

Growing Green Onions on the Windowsill full growth
It’s always exciting to grow something yourself…especially when it’s inside your house and takes little to no effort. I laugh because even though I grow wine grapes for commercial use…nothing has excited me more than growing these green onions on my windowsill. It’s the little things.

I go through green onions like mad, I am always sprinkling them on something. And the ones you grow yourself have a much more pungent (in a good way) flavor than the green onions you buy at the store.

Here I only have four in a small drinking glass but you can fill it with as many as you want, they will all grow. And what’s more amazing is how quickly it happens. You will see growth in about 4-6 hours after placing the ends in water. 

The growth you see here is after six days.

Growing Green Onions on the Windowsill first days
Chop your green onions to where you see here, right where the whitish-green part begins.

Growing Green Onions on the Windowsill first day
Place them in a small glass or jar with about an inch of water and place in a windowsill.

Growing Green Onions on the Windowsill 2 days growth
On the windowsill and this is two days of growth.

Growing Green Onions on the Windowsill
The roots get very long at the bottom of the glass.

Growing Green Onions on the Windowsill roots
And here is what they look like after harvest. This is so easy a great way to keep fresh green onions around.  

Give it a try and let me know how it goes. Your kids will find it exciting too.

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Comments

  12. I’ve tried this and it has saved me from throwing a lot of green onions away! I buy a bunch and more often than not, I do not use it all. It also prolongs the life of the ones I haven’t used yet.

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  17. Yesterday morning I put four green onion ends in a glass of water and today, 36 hours later I have them growing! This is so fun! They had already started growing yesterday when I got home from work!! It’s the little things. 🙂

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  18. I must be missing something or I am not fully recovered from the killer cold I have. Do the top parts re-grow or do you go on to plant these? Or is this just to save the bottom parts so hey don’t go to waste? What am I missing?

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  19. If those thrill you, I’m about to rock your world! LOL You can do the same thing with a whole HEAD of romaine lettuce! Just cut the leaves off in one chop, and put the “nub” of the head in a shallow dish of water. In a day or two (or three) the leaves will start to regrow. It is SO much fun!!!!

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  20. Ours have been in the water for 2 days and we definitely see growth, but my water is cloudy. Question, do you add or replace the water, or leave the same water in the jar/glass?

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  22. I just threw mine away.I guess I didn’t cut them down far enough.I do have a question though. .. What do you do with all of the roots?Do you use the whole onion…white part?
    Thanks for sharing.

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  23. I’ve done this with romaine. I also want to say there are other veggies you can do this with but can’t remember them all at the moment. The one veggie I have trouble using before it goes “bad” ie get limp and wimpy is celery. However when I remember instead of tossing it I can re-crisp it if I cut the bottom of the stock off and put it in cold water. It then soaks up the water and re-crisps itself in less than 24 hours. Put dye in the water for kids to see a fun science experiment about veins and how liquids can flow through veins. You can even use it to relate to the veins in the body.

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