Vegetable Garden Plant Guide
Havre de Grace Green Team
Onions
INTRODUCTION
The onion, also known as the bulb onion or common onion, is a vegetable and is the most widely cultivated species of the genus Allium. The onion is most frequently a biennial or a perennial plant, but is usually treated as an annual and harvested in its first growing season.
Onions are often grouped according to taste (mild and strong flavored), color (white, yellow, and red) and use (storage or freshly eaten). Globe varieties tend to keep longer in storage.
Onion cultivars also have different requirements as to the number of hours of daylight required to make an onion bulb as described below:
- Long Day - bulb sets when it receives 14-16 hours of daylight and is adapted to Northern summers;
- Short Day -bulb sets with about 12 hours of daylight and are used in the deep South for winter production;
- Intermediate - Maryland Zone 7 community gardener's can experiment with all groups, although long day and intermediate types will probably perform better in our area.
This is an excerpt from our new Vegetable Garden Plant Page on the Havre De Grace Green Team website. For more information on Onions and other Vegetable Garden Plants please see us at:
http://www.hdggreenteam.org/vegetable-plant-guide.html
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ReplyDelete