Onion seeds

  • There’s something deeply satisfying about growing crisp, flavorful onions from seed — the true backbone of every kitchen garden. At Seed Organica, our premium non-GMO onion seeds are handpicked and tested for quality to help home gardeners across the USA grow vibrant, easy-to-harvest bulbs with freshness you can taste and trust.

Growing the Best Onion Seeds

  • High-germination, USA-grown onion seeds for reliable harvests.
  • Easy to grow in gardens or containers for beginners and experts alike.
  • Heirloom-quality seeds tested for purity, flavor, and strong growth.

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Red Candy Apple Onion Seeds – Vegetable Plant
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Red Candy Apple Onion Seeds – Vegetable Plant

From $16.99 USD
From $16.99 USD
Onion Seeds – Vidalia
Vidalia Onion Seeds – Vegetable Plant
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Vidalia Onion Seeds – Vegetable Plant

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From $16.99 USD
Mix Onion Seeds – Vegetable Plant
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Mix Onion Seeds – Vegetable Plant

From $16.99 USD
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Onion Seeds – Shallots
Onion Seeds – Shallots
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Shallots Onion Seeds – Vegetable Plant

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From $16.99 USD
Red Torpedo Onion Seeds – Vegetable Plant
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Red Torpedo Onion Seeds – Vegetable Plant

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Onion Seeds – Sweet
Sweet Onion Seeds – Vegetable Plant
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Sweet Onion Seeds – Vegetable Plant

From $16.99 USD
From $16.99 USD
Onion Seeds – Welsh
Welsh Onion Seeds – Vegetable Plant
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Welsh Onion Seeds – Vegetable Plant

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From $16.99 USD
Onion Seeds – White Sweet Spanish
White Sweet Spanish Onion Seeds – Vegetable Plant
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White Sweet Spanish Onion Seeds – Vegetable Plant

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From $16.99 USD
Onion Seeds - All In One For Home Gardens
Onion Seeds - All In One For Home Gardens
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Onion Seeds - All In One For Home Gardens

From $25.54 USD
From $25.54 USD
Sweet Yellow Onion Seeds – Vegetable Plant
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Sweet Yellow Onion Seeds – Vegetable Plant

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From $16.99 USD
Onion Seeds – Red Long of Tropea
Red Long of Tropea Onion Seeds – Vegetable Plant
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Red Long of Tropea Onion Seeds – Vegetable Plant

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Onion Seeds – Apache
Apache Onion Seeds – Vegetable Plant
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Apache Onion Seeds – Vegetable Plant

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Onion Seeds – Borettana Cipollini
Borettana Cipollini Onion Seeds – Vegetable Plant
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Borettana Cipollini Onion Seeds – Vegetable Plant

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Onion Seeds – Red Burgundy
Red Burgundy Onion Seeds – Vegetable Plant
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Red Burgundy Onion Seeds – Vegetable Plant

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From $16.99 USD
Onion Seeds – Yellow
Yellow Onion Seeds
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Yellow Onion Seeds – Vegetable Plant

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From $16.99 USD
Onion Seeds – Paris Silverskin Pearl
Paris Silverskin Pearl Onion Seeds – Vegetable Plant
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Paris Silverskin Pearl Onion Seeds – Vegetable Plant

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From $16.99 USD
Onion Seeds – Crystal White
Crystal White Onion Seeds – Vegetable Plant
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Crystal White Onion Seeds – Vegetable Plant

From $16.99 USD
From $16.99 USD
Onion Seeds – Tropeana Lunga Heirloom
Tropeana Lunga Heirloom Onion Seeds – Vegetable Plant
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Tropeana Lunga Heirloom Onion Seeds – Vegetable Plant

From $16.99 USD
From $16.99 USD

Bring bold kitchen flavor home with onion seeds

If you’re shopping for onion seeds for planting, this collection is built for home gardeners who want fresh, full-flavored onions straight from the garden. There’s just something better about pulling your own onions from the soil compared to tossing store-bought bulbs into the cart. The flavor feels fresher, the texture is better, and honestly, it’s a pretty satisfying win for any backyard grower. Onions fit beautifully into kitchen gardens, raised beds, and even roomy containers, making them a solid pick for both new and experienced gardeners.

At SeedOrganica.com, we offer onion seeds for sale for hobby planters, backyard growers, and anyone who enjoys growing everyday food at home. If you’ve been wondering where to buy onion seeds online, this collection gives you a practical place to start with fresh stock, quality tested, viable seeds chosen for home gardening success.

Explore Our Onion seeds Varieties.

Our onion seeds collection brings variety to the home garden in all the right ways. Some onions are grown for their sweet, mild flavor that works great in fresh dishes, while others bring a sharper bite that stands up well in cooking. You may also find different bulb colors, shapes, and day-length types that help gardeners choose what fits their growing region and kitchen style best. That little bit of range makes onions more fun to grow than people expect.

For home gardeners, onions are one of those dependable crops that earn their keep all season long. They tuck neatly into vegetable beds, pair well with other garden favorites, and give you that useful, everyday harvest you’ll actually reach for in the kitchen. If you’re looking for onion seeds for planting, this collection is geared toward practical growers who want flavor, versatility, and a rewarding homegrown harvest.

Gardening Insights

  • Sunlight: Onions grow best in full sun, ideally with 6 to 8 hours of direct light each day.
  • Soil: Loose, fertile, well-draining soil helps bulbs develop nicely. A stone-free bed makes a difference too.
  • Watering: Keep soil evenly moist during active growth, especially while bulbs are forming.
  • Spacing: Give seedlings enough room so bulbs can size up properly without crowding.
  • Season: Onion planting time depends on your region and the variety type, so matching your onions to your local season matters.
  • Best Use: A great fit for raised beds, in-ground plots, and kitchen gardens where everyday harvests are the goal.

Frequently Asked Questions

Can onion seeds be grown in containers?

Yes, onions can be grown in containers as long as the pot is deep enough and gets plenty of direct sun. Containers work especially well for green onions or smaller bulb types, but full-size onions can also do well with the right spacing.

When should I plant onion seeds?

Onion seeds are often started in late winter or early spring, though timing can vary by region and onion type. In warmer areas, some gardeners also plant in fall. It really depends on your local climate and whether you’re growing short-day, intermediate-day, or long-day onions.

Do onions need full sun?

Yep, onions generally do best in full sun. The more consistent light they get, the better chance they have to grow strong tops and form solid bulbs.

How are homegrown onions used in cooking?

Pretty much everywhere. Homegrown onions are useful in soups, stews, salads, sautés, roasting trays, sandwiches, and everyday skillet meals. They’re one of the most versatile things you can grow in a kitchen garden.

Where can I buy onion seeds for home gardening?

If you’re looking for where to buy onion seeds, SeedOrganica.com offers onion seeds for sale for home gardeners, hobby growers, and backyard planting projects across the USA.

 

How long do onion seeds take to germinate?

  • Onion seeds typically germinate in 7–10 days when kept in warm, moist soil (around 70°F).

Can I grow onions from seeds in containers?

  • Yes! Onion seeds grow very well in deep containers or raised beds with good drainage and full sunlight.

When should I plant onion seeds in the USA?

  • Start seeds indoors 8–10 weeks before your last frost date. In warmer zones, you can sow directly outdoors in early spring or fall.

How long does it take to harvest onions from seed?

  • Depending on the variety, onions mature in about 90–120 days from transplanting.