Onions belong to the genus Allium along with garlic, chives, shallots, and leeks. The common onion ( Allium cepa ) is widely grown in Iowa gardens.


Easy Gardening

Site selection Onions grow best in full sunlight and well-drained soils. Soil preparation Work the garden soil only when it is dry enough not tost ick to gar dentools.



If onions are allowed to form seed stalks, the center of the bulb becomes woody, undesirable to eat and not suitable for long storage. Plant green onions 4 to 6 times thicker than you would dry bulb onions.


Onions: Bulb, Green and Leeks

186 2010 Ohio Vegetable Production Guide Onions: Bulb, Green and Leeks Onions: Bulb, Green and Leeks Culture Bulb Onions The bulb onions grown in Ohio are the long day storage varieties.


Agriculture and Natural Resources

Onions From Seed Growing onions from seed is the least popular of the three methods. A longer period of time is required for development, especially for dry onions.


Onions in the Garden

Onions in the Garden Dan Drost, Vegetable Specialist Summary The onion is a cool-season biennial that prefers full sun and fertile, well-drained soils.



http://ag.udel.edu/extension It is the policy of the Delaware Cooperative Extension System that no person shall be subjected to discrimination on the grounds of race, color, sex, disability, age, or national origin.


Onions Tip Sheet

MSU Extension's EZ Plant and Grow Tips Onions Tip Sheet www.migarden.msu.edu Originally developed by Lee Taylor and adapted by Gretchen Voyle. Reviewers Bridget Behe, Jennie Stanger and Mary Wilson.


Production Considerations

Onions Introduction The onion (Allium cepa) is a cool-season biennial crop that is grown as an annual. Dry bulb onions are harvested after the leaves have died and the bulbs have fully matured.



Onions © Annette McFarlane . When growing onions it is important not only to choose the correct variety for your climatic region, but also to plant them at


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