Onion Seeds

Onion Seeds

There's nothing quite like the satisfaction of growing your own delicious onion seeds. A true staple of any vegetable patch or allotment, onion varieties are easy to grow and perform well in British gardens. Not to mention, they’re an incredibly versatile ingredient, adding essential flavour to everything from fresh summer salads to aromatic curries. 

At D.T. Brown Seeds, we offer a fantastic range of onion seeds for home gardeners. We have a fantastic selection of varieties to choose from, each carefully selected for their reliable performance and unbeatable taste. Whether you're looking to grow prize-winning exhibition seeds, classic cooking onions, or fresh spring onions for salads, you’ll find your perfect seeds below.

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98 products

dt-brown VEGETABLE SEEDS Onion (Globe) Santero F1 Seeds sale
3 FOR 2 On All Seeds
Onion (Globe) Santero F1 Seeds
Offer
150 seeds Code: 20679
Sale price£0.99 Regular price£4.49
dt-brown ONIONS/GARLIC/SHALLOTS Shallot Yellow Moon Bulbsdt-brown ONIONS/GARLIC/SHALLOTS Shallot Yellow Moon Bulbs sale
Buy 4 packs Save £5
Shallot Yellow Moon Bulbs
500g pack Code: 41606
Sale price£6.45
dt-brown ONIONS/GARLIC/SHALLOTS Spring Planting Onion, Shallot and Garlic Collection sale
Buy 4 packs Save £5
Spring Planting Onion, Shallot and Garlic Collection
3 Packs Code: 47774
Sale price£16.25
dt-brown ONIONS/GARLIC/SHALLOTS Garlic Mersley Wight Bulbs (Softneck) sale
Buy 4 packs Save £5
Garlic Mersley Wight Bulbs (Softneck)
2 bulbs Code: 56085
Sale price£9.65
dt-brown VEGETABLE SEEDS Onion Redspark F1 Seeds sale
3 FOR 2 On All Seeds
Onion Redspark F1 Seeds
Offer
200 seeds Code: 25128
Sale price£0.99 Regular price£2.99
dt-brown VEGETABLE SEEDS Onion Darcy (previously know as TSX 8516) Seeds sale
3 FOR 2 On All Seeds
Onion Darcy (previously know as TSX 8516) Seeds
150 seeds Code: 25815
Sale price£0.99
dt-brown VEGETABLE SEEDS Onion (Spring) Elody AGM Seeds sale
3 FOR 2 On All Seeds
Onion (Spring) Elody AGM Seeds
250 seeds Code: 19872
Sale price£2.49
dt-brown ONIONS/GARLIC/SHALLOTS Spring Planting Garlic Collectiondt-brown ONIONS/GARLIC/SHALLOTS Spring Planting Garlic Collection sale
Buy 4 packs Save £5
Spring Planting Garlic Collection
6 Bulbs Code: 56173
Sale price£23.25
dt-brown VEGETABLE SEEDS Onion Fasto F1 Seeds sale
3 FOR 2 On All Seeds
Onion Fasto F1 Seeds
Offer
150 seeds Code: 28518
Sale price£0.99 Regular price£3.79
dt-brown VEGETABLE SEEDS Onion (Pickling) Onion de Paris Seeds sale
3 FOR 2 On All Seeds
Onion (Pickling) Onion de Paris Seeds
350 seeds Code: 15533
Sale price£2.99
dt-brown VEGETABLE SEEDS Onion (Globe) Redlander F1 Seedsdt-brown VEGETABLE SEEDS Onion (Globe) Redlander F1 Seeds sale
3 FOR 2 On All Seeds
Onion (Globe) Redlander F1 Seeds
150 Seeds Code: 36597
Sale price£4.29
dt-brown HARDWARE Onion and Bulb Fertiliser 1.5kg (twin pack)
Save £6!
Onion and Bulb Fertiliser 1.5kg (twin pack)
2x 1.5kg Code: 58233
Sale price£21.90
dt-brown VEGETABLE PLANTS Exhibition Onion Veg Plant Collectiondt-brown VEGETABLE PLANTS Exhibition Onion Veg Plant Collection
Save £10
Exhibition Onion Veg Plant Collection
60 Plants, 20 Of Each Variety Code: 48135
Sale price£18.85
dt-brown VEGETABLE PLANTS Red Baron AGM Onion Plantsdt-brown VEGETABLE PLANTS Red Baron AGM Onion Plants
Red Baron AGM Onion Plants
20 Module Raised Plants Code: 41520
Sale price£8.95
dt-brown ONIONS/GARLIC/SHALLOTS Onion Snowball Sets
Onion Snowball Sets
250g Pack Code: 41196
Sale price£5.25
dt-brown VEGETABLE SEEDS Onion (Globe) Vento F1 Seeds sale
3 FOR 2 On All Seeds
Onion (Globe) Vento F1 Seeds
150 seeds Code: 22245
Sale price£0.99
dt-brown ONIONS/GARLIC/SHALLOTS Heat Treated Onion Stuttgarter Riesendt-brown ONIONS/GARLIC/SHALLOTS Heat Treated Onion Stuttgarter Riesen
Heat Treated Onion Stuttgarter Riesen
250g pack Code: 59576
Sale price£5.85
dt-brown ONIONS/GARLIC/SHALLOTS Garlic Caulk Wight Bulbs (hardneck) sale
Buy 4 packs Save £5
Garlic Caulk Wight Bulbs (hardneck)
Sold out
2 Bulbs Code: 50165
Sale price£8.55
dt-brown ONIONS/GARLIC/SHALLOTS Garlic Carcassonne Wight Bulbs (Hardneck)dt-brown ONIONS/GARLIC/SHALLOTS Garlic Carcassonne Wight Bulbs (Hardneck) sale
Buy 4 packs Save £5
Garlic Carcassonne Wight Bulbs (Hardneck)
Sold out
2 Bulbs Code: 43200
Sale price£8.55
dt-brown ONIONS/GARLIC/SHALLOTS Senshyu Yellow Onion Sets
Senshyu Yellow Onion Sets
Sold out
250g pack Code: 47580
Sale price£6.85
dt-brown ONIONS/GARLIC/SHALLOTS Garlic Extra Early Wight Bulbs (Hardneck) sale
Buy 4 packs Save £5
Garlic Extra Early Wight Bulbs (Hardneck)
Sold out
2 Bulbs Code: 49040
Sale price£8.55
dt-brown ONIONS/GARLIC/SHALLOTS Long Harvest Garlic Bulb Collection sale
Buy 4 packs Save £5
Long Harvest Garlic Bulb Collection
Sold out
6 Bulbs Code: 49041
Sale price£21.25
dt-brown ONIONS/GARLIC/SHALLOTS Autumn Planting Garlic Bulb Collectiondt-brown ONIONS/GARLIC/SHALLOTS Autumn Planting Garlic Bulb Collection sale
Buy 4 packs Save £5
Autumn Planting Garlic Bulb Collection
Sold out
4 Bulbs and 5 Cloves Code: 47585
Sale price£28.25
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Growing Onions from Seed

Whilst growing onions from seed requires more patience than planting onion sets or onion plants, many home gardeners consider the benefits well worth it. Sowing onion seeds is not only more cost-effective, but it can also result in larger bulbs due to the extended growing season. 

Our range of onion seeds includes various varieties to suit different culinary needs. Yellow onions are great all-rounders for cooking, while red onions are sweeter – ideal for eating raw in salads. Spring onion seeds are quick-growing and add a fresh flavour to Asian dishes and garnishes. White onions, less common in the UK, offer a unique sharp and tangy taste.

Sow onion seeds outdoors in early spring, or indoors in winter, and you’ll be rewarded with delicious bulbs from August onwards.

Order Your Onion Seeds Today

At D.T. Brown Seeds, we have been selling vegetable seeds to UK home gardeners for over a century. All of our seeds are stringently tested for the highest germination rates – 100% satisfaction guaranteed.

  1. Order your onion seeds today from D.T. Brown Seeds. Shop now and enjoy fast UK delivery, with P&P from just £2.45 on seed-only orders.