Now I'm off to try this again. I started by saving the bottom stalks of the scallions (the white portions) then putting them in a glass, root down with a few tablespoons of water. Within 2 days I could see new growth in the green stems. (yay!) By day 5 it looked like they were growing strong. Now by day 6, I could literally see the changes overnight.
To help with this, I'm recommending changing out the water daily, or every other day and also giving the roots a rinse under cool water. This helps remove any sliminess that can inhibit the roots' ability to 'drink' water. If you live in an area with warmer/dry weather, you'll also notice that the water can evaporate quickly too.
I'll post more photos when my little green onion plant grows a bit bigger. I'm very curious to try and use some of the green onions to see how they taste compared to regular ones. If you've tried this kitchen experiment before, how was your experience?
Missed my video on How to Regrow Green Onions?
Click here to watch.
UPDATED PHOTOS:
After 2 weeks of just watering daily, my green onions have grown over a foot tall! Some of the tallest stalks have started bending (likely because they've gotten too tall and heavy). I ended up trimming and using the green onions for a soup and they made a nice tasty garnish. One thing to note is the new green stalks that re-grew seemed to be thinner/softer than when I originally bought them from the grocery store. I assume this is due to lack of nutrients, but they still made for a nice garnish.
After 2 weeks of just watering daily, my green onions have grown over a foot tall!
Some of the tallest stalks have started bending (likely because they've gotten too tall and heavy). I ended up trimming and using the green onions for a soup and they made a nice tasty garnish.