Thompson & Morgan

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Onion & Leek Seeds

Growing onions from seed is easier than you think and can be cheaper than buying onion sets. You'll find all different types of onion in our range - spring, white, red, brown and shallots. Our range of leeks offers outstanding garden and exhibition varieties.

We have found 3 products.

Leek 'Autumn Giant 2 - Argenta'

Allium porrum

Performs outstandingly whether sown early or late and does well over a long season. Leek 'Autumn Giant 2 Argenta' matures in October, yet stands ready for harvest right through to May. The high quality, thick, long and very heavy stems have an excellent mild flavour. This NIAB recommended variety produces good yields with few bolters. Height: 45cm (18”). Spread: 30cm (12”). More info
    • 1 packet (150 seeds)

    • Despatch: Within 1 days
    • £2.99

Leek 'Neptune'

Allium Porrum

Pure white thick stems, autumn and winter. More info
    • 1 packet (250 leek seeds)

    • Despatch: Within 1 days
    • £0.99

Leek 'Northern Lights' F1 Hybrid

Allium Porrum

  • Colour changing stems
  • British bred for winter hardiness
  • 4 month winter harvest window
A visually stunning leek with great flavour. Ideal for the show bench and the kitchen. This British-bred maincrop leek variety shows excellent winter hardiness, allowing for harvests through December to March. The blue-green leaves turn a stunning shade of purple as the coldest winter temperatures set in. Brighten up your winter veg patch and your winter dinner plate with the prettiest leek in our collection.
More info
    • 1 packet (45 leek seeds)

    • Despatch: Within 1 days
    • £2.99