Kitchen HerbsHow to Grow Green Onion (Scallion) Indoors
Regrows from the white root ends you'd normally toss — onions carry the same beneficial sulfur compounds and antioxidants as their bulbs.
Difficulty: BeginnerReady in ~7–10 daysLight: Bright sillYou'll need: A glass of water, then a pot
How to grow it
- Save the white root ends (about an inch) from store-bought green onions.
- Stand them root-down in a shallow glass with just enough water to cover the roots.
- Set on a bright windowsill and change the water every day or two.
- Snip the green tops as they regrow; pot them in soil to keep them going long term.
Common mistakes
- Letting the water turn cloudy — change it often
- Cutting too low into the white base
Pro tip
After a couple of regrows in water, move them to soil for stronger, longer-lasting growth.
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