Regrowing green onions in water is simple: place the white bulb ends with roots in a glass of water, ensuring the roots are submerged, and watch them regrow in about a week.
Here's a more detailed breakdown:
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Cut the Green Onions: When using green onions, cut off the green tops, leaving about 1-2 inches of the white bulb and root end intact.
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Place in Water: Stand the remaining white bulb ends in a small glass or jar. Add enough water to cover the roots, but not so much that it covers the entire white part of the onion.
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Choose the Right Water: Tap water is generally fine, but filtered water can be used for optimal growth. Change the water every 1-2 days to prevent bacteria growth and keep the water fresh.
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Provide Sunlight: Place the glass or jar in a location that receives bright, indirect sunlight. A windowsill is often a good choice.
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Observe Growth: You should start to see new green shoots emerging from the top of the bulb within a few days. The onions will continue to grow, and after about a week, they can be harvested. They should be as beautiful as store bought ones.
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Harvest and Repeat: Once the green shoots have grown to a usable length (e.g., several inches), you can cut them off for use in cooking. The green onions will continue to regrow from the same bulb for multiple harvests.
Tips for Success:
- Ensure the roots are always submerged in water.
- Change the water regularly to prevent mold or bacteria growth.
- Provide adequate sunlight for healthy growth.
- You can also plant the regrown green onions in soil for even more robust growth.
