How to Grow Onions Hydroponically for Continuous Harvest
Make holes on mounting box
Cut the top of the dry onion
Grow hydroponically, no need to water
After 5 days, the onion has grown new leaves
After 15 days
Onions produce a lot of roots
1st harvest
Leave 3 to 4cm for rapid leaf growth
Add more water
After 25 days, 2nd harvest
With this planting method, you can harvest many times