How do green onions grow in water?

Green onions can easily regrow in water after you've used the green parts, allowing you to get multiple harvests from a single bunch. Here's how:

Steps to Regrow Green Onions in Water

Prepare the Green Onions: After using the green tops of your green onions, keep the white bulb end with the roots attached (about 1-2 inches long).
Place in Water: Put the green onion bulbs, root-side down, into a jar or glass.
Add Water: Add about 1 inch of water to the container, ensuring the roots are submerged but most of the bulb remains above the water line. This prevents rotting.
Find a Sunny Spot: Place the jar in a warm and sunny location, such as a windowsill.
Change the Water Regularly: Change the water every 1-2 days to keep it fresh and prevent bacterial growth. This is crucial for healthy regrowth.
Watch Them Grow: Within a few days, you should start to see new green shoots emerging from the bulb. In about two weeks, you'll have new green onions ready to harvest.
Harvest: You can harvest the green shoots as needed, cutting them off near the base. The green onions will continue to regrow for several harvests.

Use a clear glass or jar to monitor root growth.
Ensure the water is clean and fresh.
Provide plenty of sunlight.
After several harvests, the green onions may lose their vigor. At this point, you can either start with new green onions or transplant the regrown bulbs into soil for further growth.

Regrowing green onions in water is a simple and effective way to reduce food waste and have fresh green onions readily available.