If you don’t have a knife, peel off the onion’s layers individually with your hands. You can eat the onion layers if they are firm and crisp, though make sure you wash them first! If they are soft and mushy discard them. [2] X Research source
If white roots are already present you can plant the sprouts straight into the soil. If you see dry, brown roots on a sprout, it means they are already dead. You want to wait for new white roots to form.
Whether indoors or outdoors, ensure the plants get ample sunlight. If you live in a cold climate, plant the sprouts in pot plants inside and gradually introduce them to the outdoors. The onions have been inside for some time and will need to adjust. [4] X Research source During the winter in cold climates keep the plants indoors at all time to ensure they stay alive. [5] X Research source Expect to see onion bulbs form after 60-80 days![6] X Research source
If you are using mulch, the onions will only need 1 inch (2. 5 cm) of water a week. [8] X Research source
If you prefer not to use synthetic compounds, oxidate or copper sprays are good alternatives. [10] X Research source
The onion bulb fully emerges from the soil. [11] X Research source The green sprouts wilt and/or turn brown. Flowers stalks appear. [12] X Research source
You can skip the curing process if you wish to eat the onions straight away but storing them without curing first carries a high risk of mildew and rot. [16] X Research source If you can’t find anywhere dry enough to cure the onions, consider using a dehumidifier to keep moisture levels down. [17] X Research source .
