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 (Spring) White Lisbon AGM Seedsdt-brown VEGETABLE SEEDS Onion (Spring) White Lisbon AGM Seeds sale
3 FOR 2 On All Seeds
Onion (Spring) White Lisbon AGM Seeds
650 Seeds Code: 15959
Sale price£1.99
dt-brown ONIONS/GARLIC/SHALLOTS Heat Treated Red Baron AGM Onion Setsdt-brown ONIONS/GARLIC/SHALLOTS Heat Treated Red Baron AGM Onion Sets
Heat Treated Red Baron AGM Onion Sets
250g pack Code: 42636
Sale price£5.85
dt-brown ONIONS/GARLIC/SHALLOTS Heat Treated Onion Set Collection
Heat Treated Onion Set Collection
500g, 250g of each variety Code: 41874
Sale price£9.70
dt-brown ONIONS/GARLIC/SHALLOTS Hercules Onion Sets
Hercules Onion Sets
250g pack (approx. 80 sets) Code: 40552
Sale price£5.25
dt-brown VEGETABLE SEEDS Onion Exhibition Seeds sale
3 FOR 2 On All Seeds
Onion Exhibition Seeds
120 Seeds Code: 25801
Sale price£1.99
dt-brown VEGETABLE SEEDS Onion (Globe) Bedfordshire Champion Seeds sale
3 FOR 2 On All Seeds
Onion (Globe) Bedfordshire Champion Seeds
700 Seeds Code: 15589
Sale price£1.99
dt-brown ONIONS/GARLIC/SHALLOTS Stuttgarter Giant Onion Sets
Stuttgarter Giant Onion Sets
250g pack/approx 80 sets Code: 43056
Sale price£5.25
dt-brown ONIONS/GARLIC/SHALLOTS Shallot Longor bulbsdt-brown ONIONS/GARLIC/SHALLOTS Shallot Longor bulbs sale
Buy 4 packs Save £5
Shallot Longor bulbs
500g pack Code: 56171
Sale price£8.45
dt-brown ONIONS/GARLIC/SHALLOTS Heat Treated Cupido Onion Setsdt-brown ONIONS/GARLIC/SHALLOTS Heat Treated Cupido Onion Sets
Heat Treated Cupido Onion Sets
250g Pack Code: 54035
Sale price£5.85
dt-brown VEGETABLE SEEDS Onion (Spring) Guardsman AGM Seeds sale
3 FOR 2 On All Seeds
Onion (Spring) Guardsman AGM Seeds
400 seeds Code: 11531
Sale price£3.29
dt-brown ONIONS/GARLIC/SHALLOTS Garlic Picardy Wight Bulbs (softneck) sale
Buy 4 packs Save £5
Garlic Picardy Wight Bulbs (softneck)
2 Bulbs Code: 46140
Sale price£8.55
dt-brown ONIONS/GARLIC/SHALLOTS Sturon AGM Onion Setsdt-brown ONIONS/GARLIC/SHALLOTS Sturon AGM Onion Sets
Sturon AGM Onion Sets
250g pack Code: 40849
Sale price£5.25
dt-brown ONIONS/GARLIC/SHALLOTS Centurion AGM Onion Setsdt-brown ONIONS/GARLIC/SHALLOTS Centurion AGM Onion Sets
Centurion AGM Onion Sets
250g pack Code: 40044
Sale price£5.25
dt-brown VEGETABLE SEEDS Onion (Spring) White Lisbon Winter Hardy Seeds sale
3 FOR 2 On All Seeds
Onion (Spring) White Lisbon Winter Hardy Seeds
600 seeds Code: 11845
Sale price£2.49
dt-brown VEGETABLE SEEDS Onion (Globe) Red Baron AGM Seeds sale
3 FOR 2 On All Seeds
Onion (Globe) Red Baron AGM Seeds
550 seeds Code: 10331
Sale price£3.29
dt-brown ONIONS/GARLIC/SHALLOTS Spring Planting Onion Set Collection
Spring Planting Onion Set Collection
750g, 250g of each variety Code: 42285
Sale price£11.65
dt-brown ONIONS/GARLIC/SHALLOTS Garlic Solent Wight Bulbs (Softneck) AGM sale
Buy 4 packs Save £5
Garlic Solent Wight Bulbs (Softneck) AGM
2 Bulbs Code: 56086
Sale price£9.65
dt-brown ONIONS/GARLIC/SHALLOTS 40 plants The Kelsae Onion Plants
The Kelsae Onion Plants
Sold out
  • 40 plants Code: 42017
  • 20 Plants Code: 49233
Sale price From £11.95
dt-brown ONIONS/GARLIC/SHALLOTS Autumn Planting Onion, Shallot & Garlic Collectiondt-brown ONIONS/GARLIC/SHALLOTS Autumn Planting Onion, Shallot & Garlic Collection sale
Buy 4 packs Save £5
Autumn Planting Onion, Shallot & Garlic Collection
Sold out
1 pack of each variety Code: 47579
Sale price£16.75
dt-brown ONIONS/GARLIC/SHALLOTS Autumn Planting Onion Set Collectiondt-brown ONIONS/GARLIC/SHALLOTS Autumn Planting Onion Set Collection
Autumn Planting Onion Set Collection
Sold out
250g pack of each variety Code: 47583
Sale price£13.70
dt-brown ONIONS/GARLIC/SHALLOTS Shallot Jermor Bulbs sale
Buy 4 packs Save £5
Shallot Jermor Bulbs
Sold out
20 shallots Code: 47578
Sale price£8.45
dt-brown VEGETABLE SEEDS Onion (Spring) Ishikura AGM Seed Tapedt-brown VEGETABLE SEEDS Onion (Spring) Ishikura AGM Seed Tape
Onion (Spring) Ishikura AGM Seed Tape
Sold out
#N/A Code: 18417
Sale price£3.79
dt-brown ONIONS/GARLIC/SHALLOTS Garlic Provence Wight Bulbs (softneck) sale
Buy 4 packs Save £5
Garlic Provence Wight Bulbs (softneck)
Sold out
2 Bulbs Code: 47590
Sale price£8.15
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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.