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.

Leek 'Autumn Giant 2 - Porvite' - RHS endorsed vegetable seeds

Allium porrum

  • RHS Award of Garden Merit

This excellent RHS AGM variety produces mid green, erect foliage, and heavy, uniform stems. Leek 'Autumn Giant 2 Porvite' stands well in the garden over a long period and demonstrates resistance to bulbiness and bolting, as well as good rust tolerance. Height: 45cm (18"). Spread: 30cm (12").

These vegetable seeds are endorsed by the RHS.
More info
    • 1 packet (150 leek seeds)

    • Despatch: Within 1 days
    • £2.99

Onion 'Ailsa Craig' (Giant/Show Vegetable)

Allium cepa

This enduringly popular and well known variety makes a splendid choice for the show bench and is equally good in the kitchen. The quality, large, globe shaped bulbs have a rich, golden, straw coloured skin and an excellent mild flavour. For the largest bulbs, Onion 'Ailsa Craig' can also be sown in modules in autumn for transplanting outdoors in spring. Height: 45cm (18"). Spread: 10cm (4").

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

Useful links:

Companion PlantingHow to grow Onions

More info
    • 1 packet (250 onion seeds)

    • Despatch: Within 1 days
    • £1.99