ISU Extension Clippings
Harvesting and Storing Onions
August 20, 2020
by Richard Jauron, Extension Horticulturist
Onions are a staple in the kitchen. If properly harvested, cured and stored, homegrown onions can be enjoyed through much of fall and winter.
When should onions be harvested?
Storage onions should be harvested when the tops have fallen over and turned brown. Most onion cultivars mature 90-120 days after planting. Carefully pull or dig the bulbs with the tops attached.
How should I dry and store onions?
After harvesting, dry or cure the onions in a warm, dry, well-ventilated location, such as a shed or garage. Spread out the onions in a single l...