White Grano Onion Seeds – Mild, Low-Pungency Short-Day Variety for Versatile White Bulbs

Heirloom - Non-GMO - Reliable Germination

$3.49 USD
Shipping calculated at checkout.
Size: 1 Packet

What Makes Survival Garden Seeds Different - non-GMO heirloom seeds

Grow crisp, mild white onions with White Grano Onion Seeds from Survival Garden Seeds. This classic short-day variety produces smooth, white bulbs averaging about 3 inches in diameter and is known for its low pungency and versatile flavor. White Grano performs especially well in southern and western regions, including Texas, and offers dependable growth with the added benefit of being slow to bolt.

Mild, Versatile Flavor:
White Grano onions deliver a clean, gentle onion taste that works well in a wide range of dishes. Their juiciness and mild character make them excellent for raw uses such as salads, salsas, and sandwiches, while also shining in cooked recipes where a balanced onion flavor is desired.

Short-Day Onion for Southern Gardens:
Adapted to regions with shorter winter days, White Grano forms bulbs reliably when grown in southern climates. Its slow-bolting habit allows for a longer harvest window and short-term storage compared to many other short-day types. Gardeners appreciate its consistent sizing, steady growth, and dependable yields.

Why Customers Love White Grano Onion:

  • Mild, low-pungency flavor suitable for raw and cooked dishes
  • Produces uniform 3-inch white bulbs
  • Short-day variety ideal for southern and western growers
  • Slow to bolt for a longer harvest period
  • Versatile in the kitchen and easy to grow

How to Grow:
Start seeds indoors 8–10 weeks before your intended planting date, or sow directly outdoors in suitable climates. Transplant into loose, well-drained soil in full sun. White Grano forms bulbs when grown under short-day conditions, making southern regions ideal for this variety. Keep soil evenly moist, weed regularly, and harvest when bulbs reach full size and tops begin to fall. Use promptly or store short-term in a cool, dry place.

Net Wt. 500MG

Heirloom Vegetable Seeds

All of our seeds are open-pollinated, non-GMO, heirloom varieties with tested germination rates

Specifications

  • Botanical Name
    Allium cepa
  • Planting Zones
    7-10
  • Light
    Full Sun
  • Soil Temp for Germination
    75 Degrees F
  • Germination Time
    8-10 Days
  • Planting Depth
    1/2 Inch
  • Plant Size
    12-18 Inches Tall, 6-8 Inch Spread
  • Days to Harvest
    110-112 Days
  • Growing Instructions
    Start indoors 8-10 weeks before last average frost date, or sow directly outside once the ground can be worked. Keep evenly moist until well established. Trim back to 3 inches to focus growth in roots. Plant seedlings 2 inches deep and space 4-6 inches apart.
  • Seed Saving Instructions
    Onions are biennial and produce flowers in the second year. In autumn, mulch heavily or pull up chosen bulbs to replant in spring. Once flowering heads begin turning brown, clip and place in a paper bag. Dry for several weeks, then shake to release. Separate and store in a cool dry place.
  • Seed Count (approximate)
    99 to 140

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Why Choose Survival Garden Seeds

At Survival Garden Seeds, we believe in preparing today for tomorrow’s peace of mind. That’s why we offer only heirloom, non-GMO, and untreated seeds you can trust to nourish your family and support a sustainable lifestyle. As a family-owned American company, we’re committed to providing seeds that grow strong and true—helping you cultivate health, resilience, and beauty in your garden.

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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 treated?

No, we do not pre-treat our farmer seeds. All of our garden seeds for sale 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.

In what zones can I grow your seeds?

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 gardening 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 varieties that meet our standards for germination and reliability.