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.

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Onion 'Supasweet'™ (Dulcinea) F1 Hybrid

Allium cepa

 Customer Rating

The first commercial variety of sweet and mild bulb onions available to UK gardeners! The large semi-globe, copper-skinned bulbs of Onion Supasweet™ are so sweet and juicy they can be eaten raw without being overpowering - ideal for adding to summer salads. Bulbs are best used as required, as they are not renowned for their storage capabilities.

Please note: Onion flavour (its sweetness and mildness) is significantly affected by weather conditions, soil type and its sulphur content. Light, sandy soils produce the highest levels of sweetness, whereas clay and dark humus rich soils can result in bulbs with a stronger flavour. 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 (200 onion seeds)

    • Despatch: Within 1 days
    • £2.99

Leek 'Pandora' - Duchy Originals Organic Seeds

Allium porrum

This quick maturing variety produces delicious, long, pure white stems with dark green upright leaves. A uniform crop of Leek 'Pandora' can be harvested from late summer onwards, as and when they are needed in the kitchen. This excellent variety also shows good tolerance to leek rust. Height: 45cm (18"). Spread: 30cm (12"). More info
    • 1 packet (75 leek seeds)

    • Despatch: Within 1 days
    • £2.99