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Onion Seeds

Start or expand your garden with our premium selection of 100% non-GMO onion seeds. From yellow and green onions to organic varieties, we have everything you need. Shop now and start growing your own flavorful onions today.

 

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  • Parade Green Onion Seeds
    Parade Green Onion Seeds
    5 (6)
    $5.95
  • Echallion Creme Brulee Hybrid Shallot Seeds
    Echallion Creme Brulee Hybrid Shallot Seeds
    5 (2)
    Special Price $5.56 Regular Price $6.95
    Echallion Creme Brulee Hybrid Shallot Seeds
  • Candy Hybrid Onion Seeds
    Candy Hybrid Onion Seeds
    As low as $4.95
  • Warrior Bunching Onion Seeds
    Warrior Bunching Onion Seeds
    Special Price $2.36 Regular Price $2.95
    Warrior Bunching Onion Seeds
  • Zebrune Shallot Seeds
    Zebrune Shallot Seeds
    3.2 (5)
    $6.95
    Zebrune Shallot Seeds
  • Yellow Granex Hybrid 33 Onion Seeds
    Yellow Granex Hybrid 33 Onion Seeds
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    As low as $5.95
  • Walla Walla Sweet Onion Seeds
    Walla Walla Sweet Onion Seeds
    3.35 (3)
    As low as $5.95
  • Ultimate Park Seed Veggie Pizza Garden Seed Collection
    Ultimate Park Seed Veggie Pizza Garden Seed Collection
    5 (1)
    $27.95
    Ultimate Park Seed Veggie Pizza Garden Seed Collection
  • Conservor Organic F1 Shallot Seeds
    Conservor Organic F1 Shallot Seeds
    $7.95
    Conservor Organic F1 Shallot Seeds
  • Parade Green Onion Organic Seeds
    Parade Green Onion Organic Seeds
    $4.95
    Parade Green Onion Organic Seeds
  • Long-Day (Northern) Onion Sets Mix
    Long-Day (Northern) Onion Sets Mix
    3.35 (3)
    $38.95 As low as $34.95
  • Yellow Onion Sets
    Yellow Onion Sets
    Special Price $8.00 Regular Price $18.95
  • Short-Day (Southern) Onion Sets Mix
    Short-Day (Southern) Onion Sets Mix
    2.35 (3)
    $38.95 As low as $34.95
  • Walla Walla Sweet Onion Sets
    Walla Walla Sweet Onion Sets
    3 (2)
    $37.95 As low as $33.95
  • Red Onion Sets
    Red Onion Sets
    4 (1)
    Special Price $10.00 Regular Price $18.95
  • Midday Onion Sets Mix
    Midday Onion Sets Mix
    3 (3)
    $38.95 As low as $34.95
  • Sweet Onion Sets
    Sweet Onion Sets
    4 (1)
    Special Price $10.00 Regular Price $18.95
  • White Onion Sets
    White Onion Sets
    4 (1)
    Special Price $8.00 Regular Price $18.95
  • Texas Super-Sweet Onion Sets
    Texas Super-Sweet Onion Sets
    $37.95 As low as $33.95
  • Lancelot Leek Plants
    Lancelot Leek Plants
    5 (1)
    $46.95 As low as $41.95
  • Candy Hybrid Onion Sets
    Candy Hybrid Onion Sets
    5 (1)
    $37.95 As low as $33.95
  • Patterson Onion Sets
    Patterson Onion Sets
    $37.95 As low as $33.95
  • Red Candy Apple Hybrid Onion Sets
    Red Candy Apple Hybrid Onion Sets
    $37.95 As low as $33.95
  • Granex Hybrid 33 Yellow Onion Sets
    Granex Hybrid 33 Yellow Onion Sets
    $37.95 As low as $33.95

Items 1-24 of 27

Is it Better to Grow Onions from Seed or Bulb?

Growing onions from seed provides access to a broader range of varieties, including organic and heirloom options. Onion seeds take longer to mature but often develop stronger disease resistance and better adaptability to different conditions.

For a faster harvest, onion sets (small bulbs) offer a convenient alternative while still yielding great results. Whether you choose seed or bulb, you can enjoy fresh onions in your garden.

Should I Soak Onion Seeds Before Planting?

Yes, soaking onion seeds in water for 12 to 24 hours can improve germination rates. This process helps soften the seed coat, allowing for faster and stronger sprouting.

While it's not strictly required, soaking your seeds can improve the growth process if you're planting in less-than-ideal conditions or want to speed up your harvest.

Do Onion Seeds Need a Heat Mat to Grow?

Onion seeds don't require a heat mat to grow, but using one can significantly improve germination, especially if your indoor environment is below 70°F. Heat mats provide a consistent, warm soil temperature that encourages faster sprouting and stronger initial root development.

They can also help prevent uneven germination, which is common with fluctuating temperatures. If you plan to start your seedlings indoors, a heat mat can make all the difference. 

Another resource to improve your indoor planting process is our Bio Domes. These seed starter kits focus on crucial factors like moisture and space so your harvest has the best growth potential. 

What Should I Not Plant with Onions?

Avoid planting onions near beans or peas, as these crops can compete for similar nutrients and inhibit each other’s growth.

Onions do well with companion plants like carrots, lettuce, and herbs like dill or parsley. Keeping the right plant neighbors helps maximize your garden's yield and promotes healthier crops.

6 Steps to Grow Onion Seeds

Growing onions from seed is a straightforward process that requires just a bit of preparation and care. By following these simple steps, you can set yourself up for a successful season:

  1. Prepare your soil: Make sure your soil is loose, well-draining, and rich in organic matter.

  2. Plant your seeds: Sow seeds ¼ inch deep and about 1 inch apart.

  3. Water consistently: Keep the soil evenly moist but avoid waterlogging.

  4. Thin your seedlings: Once they sprout, thin plants to 4 inches apart for proper spacing.

  5. Monitor for pests: Onions are relatively hardy but watch for signs of disease or pests.

  6. Harvest at the right time: Bulb onions are ready when their tops begin to yellow and fall over. Green onions can be harvested anytime after they reach a suitable size.

With these steps, you’ll be well on your way to growing a healthy onion crop. Start your onion-growing journey today with our high-quality seeds. 

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