How to Stop Onions From Sprouting
- 1). Spread out recently-harvested onions in a single layer in a dry, warm location. Leave the onions to dry for three weeks or until the neck of the bulb is completely dried.
- 2). Fill a mesh bag or wire basket with the dried onions. Avoid plastic containers or any storage device that doesn't allow air to circulate around the onions. Improper air circulation leads to moisture buildup, which causes onions to sprout or rot.
- 3). Place the onions in a dry location, at 32 to 40 degrees Fahrenheit. Warm temperatures can encourage sprouting or rot. Avoid areas where temperatures drop below freezing.
- 4). Store other ripening fruits and vegetables in a location away from the onions. Ripening fruits produce ethylene gas, which helps encourage onions to sprout.
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