Onions and Shallots

Now recognised as an essential part of the gardener’s vegetable patch, Suttons Seeds’ Onion Seeds and onion bulbs come with excellent health benefits such as lowering blood pressure, combating infections plus reducing fat and cholesterol levels.

You will also be glad to know that the onion and shallot seeds couldn’t be easier to grow - simply plant the onion/shallot sets (immature bulbs) in autumn, and they’ll be ready to lift and dry next July! All pack come complete with full growing instructions.

There are plenty of onion and shallot seed varieties on offer to excite your garden such as the sweet Italian, early-cropping Radar and even the spicy Red Gourmet types - Quality guaranteed!

If you have ordered seeds and would like to know the latest despatch information, view the Despatch Schedule

Showing 24 products(s) Page 1 of 2
  1. Onion Hoe Quick View

    Onion Hoe

    Code: 558613

    Delivery: 7 - 10 Days
  2. Onion Plants - Santero Improved Quick View

    Onion Plants - Santero Improved

    Code: MH3618

    Delivery: April Value Plug Plants
    From£5.99 More Info
  3. Onion Sets - Autumn Champion Quick View

    Onion Sets - Autumn Champion

    Code: 240670

    Delivery: SEP-ONWARD 250g
  4. Onion Sets - Electric Quick View

    Onion Sets - Electric

    Code: 240666

    Delivery: SEP-ONWARD 250g
  5. Onion Sets - F1 Hytech Quick View

    Onion Sets - F1 Hytech

    Code: 260027

    Delivery: MAR-ONWARD 200g Pack
  6. Onion Sets - F1 Santero Quick View

    Onion Sets - F1 Santero

    Code: 260040

    Delivery: MAR-ONWARD 200g Pack
  7. Onion Sets - Radar Quick View

    Onion Sets - Radar

    Code: 232380

    Delivery: SEP-ONWARD 250g Pack
  8. Onion Sets - Red Champion Quick View

    Onion Sets - Red Champion

    Code: 244395

    Delivery: SEP-ONWARD 250g
  9. Onion Sets - Red Ray Quick View

    Onion Sets - Red Ray

    Code: 234230

    Delivery: MAR-ONWARD 200g Pack
  10. Onion Sets - Senshyu Yellow Quick View

    Onion Sets - Senshyu Yellow

    Code: 232385

    Delivery: SEP-ONWARD 250g Pack
  11. Onion Sets - Sturon Quick View

    Onion Sets - Sturon

    Code: 260020

    Delivery: DEC-ONWARD 250g Pack
  12. Onion Sets - Triple Pack Save 23% Quick View

    Onion Sets - Triple Pack

    Code: 240674

    Delivery: SEP-ONWARD 250g (1 pack of each variety)
    RRP £10.47 £7.99 More Info
  13. Onion, Garlic & Shallot Bulbs - Bumper Collection Save 43% Quick View

    Onion, Garlic & Shallot Bulbs - Bumper Collection

    Code: 244420

    Delivery: SEP-ONWARD 250g, 2 Bulbs, 400g
    RRP £39.21 £21.99 More Info
  14. Onion, Garlic & Shallot Bulbs - Collection Quick View

    Onion, Garlic & Shallot Bulbs - Collection

    Code: 244415

    Delivery: SEP-ONWARD 250g, 400g & 2 Bulbs
  15. Shallot Bulbs - Griselle Quick View

    Shallot Bulbs - Griselle

    Code: 232400

    Delivery: SEP-ONWARD 400g Pack
  16. Shallot Bulbs - Longor Quick View

    Shallot Bulbs - Longor

    Code: 244390

    Delivery: SEP-ONWARD 400g
  17. Shallot Bulbs - Red Gourmet Quick View

    Shallot Bulbs - Red Gourmet

    Code: 260100

    Delivery: DEC-ONWARD 400g Pack
  18. Shallot Bulbs - Red Sun Quick View

    Shallot Bulbs - Red Sun

    Code: 260107

    Delivery: DEC-ONWARD 400g Pack
  19. Shallot Bulbs - Triple Pack Quick View

    Shallot Bulbs - Triple Pack

    Code: 244410

    Delivery: SEP-ONWARD 400g Pack (1 of each variety)
  20. Shallot Bulbs - Yellow Moon Quick View

    Shallot Bulbs - Yellow Moon

    Code: 260115

    Delivery: SEP-ONWARD 400g Pack
Showing 24 products(s) Page 1 of 2

Onion Sets - The Easy Way to Grow Onions

No seed sowing, no thinning, no fuss; just push them into the earth where you want them, and watch them grow! - Unpack sets on arrival, and spread in a light cool position until planting time. Plant February-April, leaving tips of bulbs above the soil surface, allowing about 10cm (4") between sets and about 30cm (12") between rows. 250g of onion sets (approx. 60 sets) will plant a row of about 6m (19'). Size of sets 14/21mm.

Why buy heat treated onion sets?

It's frustrating when your beautifully forming onions decide it's time to develop seed and send up a flower stalk. Heat treating is a process that we carry out on your behalf to prevent this happening.
Heat treatment starts in November depending on the size of the bulb. During the heat treatment, the onion sets are gradually heated up over 12 days from the 3-5°C storage temperature to 30-32°C and, depending on size, are kept at this temperature for 30-60 days (during which time they are heated up to 32-35°C for 10 days) and then gradually cooled to 10-14°C for planting in April/May. So whilst they are a little more expensive, you can be more confident of harvesting onions you can be proud of!


Autumn planting Onions, Garlic and Shallots will give you an earlier crop next year!

Onions are one of our most invaluable vegetables and also one of civilisation’s oldest medicines. They can help lower blood pressure and cholesterol levels, and are anti-asthmatic, antibacterial and antiseptic.