What Time of Year Should You Plant Onions?
Onions are a cool-season vegetable that can be planted in the spring or fall. In general, it is best to plant onion sets in the spring, as they will have a longer growing season and will produce larger bulbs. However, if you live in a mild climate, you can also plant onion sets in the fall.
To determine the best time to plant onions in your area, you can consult with your local extension office or nursery. They will be able to tell you the average first and last frost dates for your area, which will help you determine the best time to plant.
Onion Sets vs. Seeds
You can plant onions either from sets or seeds. Onion sets are small, immature onions that have been harvested and dried. Seeds are less expensive than sets, but they will take longer to grow. If you are planting onions from seeds, you will need to start them indoors about 6 weeks before the last frost date.
Planting Onions
When planting onion sets, make sure the root end is down and the shoots are pointing up. Space the sets about 4 inches apart. If you are planting onion seeds, sow them thinly in rows about 12 inches apart.
Water and Fertilize
Onions need regular watering, especially during dry spells. Fertilize the onions every few weeks with a balanced fertilizer.
Harvesting Onions
Onions are ready to harvest when the tops start to turn brown and die back. To harvest, gently lift the onions out of the ground and allow them to dry in the sun for a few days. Once they are dry, you can store onions in a cool, dry place.
Frequently Asked Questions
- When is the best time to plant onions from sets? In the spring, after the last frost date.
- When is the best time to plant onions from seeds? 6 weeks before the last frost date.
- How far apart should I space onions? About 4 inches apart.
- How often should I water onions? Regularly, especially during dry spells.
- How do I know when onions are ready to harvest? When the tops start to turn brown and die back.
Related Products
- Miracle-Gro Onion & Garlic Plant Food
- Green Thumb Onion Sets
- Harris Seeds Onion Seed
- Burpee Onion Plant
- Gardener's Supply Onion Growing Kit
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