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.

Spring Onion 'White Lisbon'

Allium cepa, Bunching Onion, Scallion

  • RHS Award of Garden Merit
Very quick growing salad onion. Sow Spring Onion White Lisbon in succession for a continuous crop all spring, summer and autumn. This customer favourite is also the best variety for overwintering - make a late sowing in September and see!
More info
    • 1 packet (160 spring onion seeds - seed tape)

    • Despatch: Within 1 days
    • £2.99
    • 1 packet (500 spring onion seeds)

    • Despatch: Within 1 days
    • £2.29

Onion 'Rouge Long De Florence' - Heritage

Allium cepa

Italian Onion 'Rouge Long de Florence' produces traditional torpedo shaped bulbs with stunning, deep purple red skin. This heritage red onion is mild, and sweet - perfect for adding colour and flavour to salads or stir fries, and great for pickling too. This versatile variety can be harvested early as spring onions or left longer in the ground to form mature bulbs. 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 (350 onion seeds)

    • Despatch: Within 1 days
    • £2.29 £0.99

Spring Onion 'Winter White Bunching'

Allium cepa, Bunching Onion, Scallion

A dual purpose onion that resists bulbing up enabling it to be pulled for a longer period than regular varieties. Spring Onion Winter White Bunching has excellent overwintering qualities, can be sown either late August for late May pulling or in spring and summer for summer/autumn crops. More info
    • 1 packet (500 seeds)

    • Despatch: Within 1 days
    • £1.99