Onion Seeds – Non-GMO Heirloom

The everyday vegetable worth a permanent spot in your garden

Onions (Allium cepa) are one of the most useful vegetables you can grow: a hardworking allium prized for its layered, flavor-packed bulbs. From mild sweet Spanish types to sharp storage reds, homegrown onions carry a depth and freshness you rarely find in a store bag. Each plant swells a single bulb through the long days of summer, and a well-tended bed can keep a kitchen in onions right through the colder months.

How to grow onions from seed

Onions reward a little patience up front. Start onion seeds indoors 8 to 10 weeks before your last frost, or direct-sow a quarter inch deep once the soil can be worked, then thin plants to stand about four inches apart in full sun. Onions are heavy feeders that like loose, fertile, well-drained soil, and most types size up in roughly 90 to 120 days depending on your day length. Because bulbing is triggered by day length, choose long-day types for the North and short-day types for the South. For the full step-by-step, see our complete guide to growing onions from seed.

How to use onions

The bulb is the workhorse of the kitchen. Slice onions raw into salads and sandwiches, sweat them low and slow into a caramelized jammy base for soups and sauces, or pickle small ones whole. Young thinnings and bunching types make fresh scallions for garnishing, and full-sized bulbs cure and store for use all winter long. Few crops earn their space in the garden as reliably as a good onion.

Onions and their vegetable-garden companions

Onions pair naturally with the other vegetables you cook them alongside. Grow feathery chives for a mild oniony garnish straight from the herb bed, add sweet carrots as a classic soffritto partner, or plant crisp cucumbers for fresh summer salads. Explore the full range in our vegetable seeds collection.

Why buy onion seeds from Organo Republic

Every packet of onion seed we sell is non-GMO, open-pollinated heirloom, and germination tested, so you can sow with confidence. As a U.S.-based licensed seed dealer, we work directly with trusted growers to keep quality high and prices low, and every pack carries a QR code that links straight to free online growing guidance. Orders over $49 ship free. Whether you want a single pack of onions or a full vegetable-garden collection, you will find dependable, easy-to-grow seed here.