Growing green onions is a simple process that can be done at home to add visual appeal and provide fresh vegetables. There are two methods for growing green onions: hydroponically (with water) or in plastic bottles with soil.
How to Grow Green Onions
Growing Green Onions Hydroponically
Growing green onions hydroponically is a straightforward process that requires no soil or fertilizer. Follow these steps:
What You’ll Need:
- Green onions
- Knife
- Glass cup or plastic bottle with the bottom cut off
Steps:
1. Choose healthy green onions with stout, green stems. Cut off the white root part, leaving it around 2-7cm long. Set aside the leaf part for cooking.
2. Place the onion root in a glass cup or plastic bottle, ensuring that the entire root is covered with water.
3. Place the cup or bottle of onions in an area with enough light, but not in direct sunlight. Change the water every 2 days to prevent rotting and promote healthy growth.
4. After approximately 7 days, the green onions will begin to sprout. After 14 days, new bulbs will grow tall. At this point, you can cut the leaves for cooking and continue to harvest the regrowing onions.
5. After three leaf cuttings, add a small amount of soluble organic fertilizer to the water to provide additional nutrients for the plant.
Growing Onions in Plastic Bottles
Growing green onions in plastic bottles can yield a higher crop compared to growing in water. Here’s how:
What You’ll Need:
- 5-liter plastic bottle
- Plastic tray
- Markers
- Drill
- Sharp knife
- Onions
- Soil
Steps:
1. Use a knife to cut off the top portion of the plastic bottle, leaving the neck intact.
2. Use a marker to outline and mark round holes around the body of the bottle. These holes should be slightly smaller than the size of the onions you plan to plant. Use scissors or a sharp knife to puncture the marked holes.
3. Create drainage holes at the bottom of the bottle to prevent water buildup and root rot.
4. Begin layering the bottle with soil and onions. Start with a layer of soil, followed by a layer of onions. Place the onions in the punched holes so that the tops stick out. Continue alternating layers of soil and onions until the bottle is full.
5. Place the onion-filled bottle on a plastic tray to capture any excess water. Position the bottle near a window with ample sunlight and water it once a day.
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