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 2 products.

Onion 'Doux des Cevennes'

Allium cepa

Originating from the steep terraced hillsides of the Cevennes mountain range, heritage variety Onion 'Doux des Cevennes' is highly prized throughout France. With a mild, delicate flavour, and a thin pearly skin, the soft pale flesh has a delicate flavour when eaten raw and becomes more savoury when cooked. This sweet onion is perfect for making delicious onion tarts. Height: 45cm (18”). Spread: 15cm (6”).

Companion planting: Try growing onions with mint to confuse and deter onion fly.

Useful links:

Companion PlantingHow to grow Onions

More info
    • 1 packet (200 onion seeds)

    • Despatch: Within 3 days
    • £2.69

Leek 'Cairngorm' F1 Hybrid

Allium porrum

The first F1 leek from seed, produced by British breeding from specially selected top prize-winning show leeks! This stocky variety has superb vigour and uniformity making it ideal for growing individually as a pot leek. Early autumn maturity makes Leek 'Cairngorm' ideal for the show bench as well as outside in the vegetable plot, where stems will stand until after Christmas. Height: 45cm (18”). Spread: 30cm (12”). More info
    • 1 packet (40 leek seeds)

    • Despatch: Within 3 days
    • £2.99