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Onion Seeds

Onion seeds are a foundational element for any vegetable garden. They produce flavorful bulbs, essential in any kitchen. Renowned for their adaptability, onions can grow basically anywhere, though they thrive best in full sun and well-drained, fertile soil. They are available in various types; including sweet, yellow, red, and white onions.

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Survival Garden Seeds provides a variety of long-day, intermediate-day, and short-day onion varieties, each with detailed sowing instructions on the packet. They include green onion seeds and red onion seeds.

Growing Onion Seeds in Your Vegetable Garden

  • Long-storing homegrown produce
  • Varieties for different cooking uses and climates
  • Requires nutrient-rich soil for optimum growth
  • Long-day onions need 14-16 hours of sunlight; short-day need 10-12

INTRODUCING ONION SEEDS

Onions are celebrated for their nutrition and usefulness in the kitchen. These delicious vegetables provide a rich source of vitamins, minerals, and antioxidants. Cultivated for thousands of years, onions originally come from Central Asia. Because of their versatile use, onions have spread across the world, and can be grown outdoors in USDA hardiness zones 3 to 9. Planting times vary based on the variety and local climate.

HOW TO PLANT ONION SEEDS

Knowing when to start onion seeds is key to their successful cultivation. Find an area that receives full sunlight with fertile, well-drained soil. Sow onion seeds directly in the garden in early spring. Alternatively, start indoors 6 to 8 weeks before the last frost date. Plant the seeds about a quarter-inch deep. Spacing should be done according to the desired bulb size and instructions on your packet. Keep the soil consistently moist to encourage germination, which usually happens within 10 to 14 days.

MAINTAINING ONION PLANTS

Once onion seedlings have been established, they require minimal maintenance. Thin them out to prevent overcrowding. Regular watering is essential, especially during bulb formation, but be cautious of overwatering to prevent rot. Harvesting can start when tops begin to yellow and fall over. Curing onions in a warm, dry place enhances their flavor and storage life.

Survival Garden Seeds provides customers with onion seeds for sale from a trusted source. Gardeners get the satisfaction of growing their own food, which adds value to the flavor of the meals. Used raw in salads or caramelized - onions are a rewarding, easy crop to grow!

Frequently Asked Questions

What are heirloom seeds?

Heirloom seeds are the types of seeds your grandparents grew. These varieties have been passed down from generation to generation. They’re old reliable open-pollinated varieties that aren’t typically grown commercially. Instead, they have a rich history that predates modern breeding techniques. You can learn more about open-pollinated, heirloom, and non-GMO seeds in our Survival Garden Training blog.

How do I know my seeds are fresh?

Every seed packet includes a "packed for" date, and we germination test each seed lot before packaging to ensure you receive viable, high-quality seeds that are ready to grow.

Are your seeds chemically treated?

No, we do not pre-treat our seeds. All of our garden seeds are untreated, open-pollinated, non-GMO, and heirloom varieties. They are kept in temperature-controlled cooler storage until they are packed and shipped to keep them pest and disease-free.

Will your seeds grow in my USDA Hardiness zone?

The seeds in our collections are specifically chosen from varieties that can be successfully grown from Zone 3 to Zone 10 USDA Hardiness Zones. However, individual varieties have specific needs to thrive in different environments. Each seed pack has optimal temperatures for germination and instructions on seed starting. Consult local frost dates to plan your garden and get the most out of your seeds.

What is the shelf life of these garden seeds?

Most seeds remain viable for 3 to 5 years or longer when stored properly. Check your seed packet for specific varieties. For best results, keep your seeds in a cool, dry place away from direct sunlight and moisture. Store them in an airtight container in a consistent temperature environment—a refrigerator or cool basement works well. Proper storage helps maintain germination rates and extends seed life well beyond the packed date.

Where are Survival Garden Seeds sourced?

The majority of our seeds are sourced in the United States, with a few exceptions when the seed is difficult to source domestically. Whenever we do have to source outside of the US, we ensure our seeds are safe to grow, non-GMO, heirloom varieties that meet our standards for germination and reliability.

Learn more in the blog

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