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 49 products.
 

Shallot 'Lorient'

Allium cepa (Aggregatum Group)

Finally a shallot you can reliably grow from seed! British-bred Shallot Lorient has been developed over 14 years with UK gardeners in mind. This superb variety offers superior performance compared to other seed varieties, and matches planting sets (immature bulbs) in terms of reliability, garden performance, and pest and disease resistance. Shallot Lorient is tough from the get go, making a strong start even in a cold spring. Mildew resistant and slow to bolt under the summer heat, this top-performer soldiers on to produce long, richly-sweet bulbs that add a real gourmet depth to any dish where onions are called for. Height: 35cm (14"). Spread: 15cm (6"). More info
    • 1 packet (125 shallot seeds)

    • Despatch: Within 1 days
    •  
    • £1.99

Leek 'King Richard'

Allium porum

A particularly early cropping variety that can be lifted by July from the very earliest sowings, but will easily stand until Christmas from a later sowing. The long, slender stems of Leek 'King Richard' are full flavoured and ideal for slicing. This RHS AGM variety can also be grown close together for delicious, succulent mini leeks, but is best harvested by Christmas as it is less hardy than some other varieties. Height: 45cm (18"). Spread: 30cm (12").
More info
    • 1 packet (125 leek seeds)

    • Despatch: Within 1 days
    •  
    • £2.69 £0.99

Onion 'Hi Keeper' F1 Hybrid

Allium cepa

With excellent winter hardiness, this is by far the best variety for overwintering from an autumn sowing outdoors. Onion 'Hi Keeper' produces quality globe shaped bulbs weighing 120g (4oz), with golden yellow skins that will store well. This versatile variety is equally good from a spring sowing and makes a fine choice for the kitchen or the show bench. 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 (80 onion seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Leek 'All Season Collection'

Allium porrum

We've built our leek collection on hardy, disease resistant British-bred varieties so you can be sure your crop will stand up to winter and summer extremes with little risk of rust, bulbing or bolting. This collection comprises; 'Lincoln', 'Oarsman' and 'Below Zero'. Oarsman bulks out quickly for the earliest summer harvest. Lincoln covers autumn and winter, while Below Zero takes you round to spring.
More info
    • 1 packet (60 leek seed mix)

    • Despatch: Within 1 days
    •  
    • £3.99

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 1 days
    •  
    • £2.99

Leek 'Bulgaarse Reuzen - Lincoln'

Allium porrum

If you can't wait for the autumn leek harvest, use Leek Lincoln to bring your crops into summer! We've selected this vigorous grower to bring you the earliest picking. An early spring sowing will lead to medium sized clean white shanks for picking in late summer. With little risk of bolting and inbuilt disease resistance, Leek Lincoln also stands well in the soil for harvest right through autumn - if you have the restraint to leave some of the tender, full flavoured shanks in the ground that long! Height: 45cm (18"). Spread: 30cm (12").
More info
    • 1 packet (100 leek seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Onion 'Bedfordshire Champion'

Allium cepa

Onion 'Bedfordshire Champion' has retained its popularity for over a hundred years. This heavy cropping variety produces large globe shaped, golden brown skinned bulbs with crisp white flesh and a mild flavour. This reliable onion is well suited to the UK climate with late summer maturity and excellent storing capabilities. 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

Spring Onion 'Purplette'

Allium cepa, Bunching Onion, Scallion

 Customer Rating

An early bulbing, glossy purple-red skinned salad onion when small. The colour changes to lovely pastel pink when larger bulbs are pickled or cooked.

More info
    • 1 packet (300 spring onion seeds)

    • Despatch: Within 1 days
    •  
    • £1.99

Spring Onion 'Feast' F1 Hybrid

Allium cepa, Bunching Onion, Scallion

Onion Feast has long pure white slender stems contrast with the dark green, erect leaves of this outstanding spring onion. Excellent heat and downy mildew tolerance. Onion Feast stands very well, keeping in good condition. Ideal for successional sowing. Seeds are in the RHS Vegetable Collection.
More info
    • 1 packet (500 spring onion seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Onion 'Sturon' - Duchy Originals Organic Seeds

Allium cepa

An RHS Award of Garden Merit variety producing well sized semi-round bulbs with good keeping qualities. Onion 'Sturon' is a traditional variety that has become a favourite for its reliability. Height: 45cm (18"). Spread: 15cm (6"). 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 (300 onion seeds)

    • Despatch: Within 1 days
    •  
    • £1.99

Spring Onion 'Pompeii'

Allium cepa, Bunching Onion, Scallion

Allium cepa. A quick growing, silver skinned cocktail/pickling onion. Spring Onion Pompeii is succulent and ideal for sowing thinly in containers or window boxes. More info
    • 1 packet (300 spring onion seeds)

    • Despatch: Within 1 days
    •  
    • £1.99

Onion 'Kappa'

Allium cepa

An unusual cylindrical shape means these golden-skinned onions can be grown at a closer spacing than normal, for increased cropping! Lending itself perfectly to slicing, the delicious, crisp white flesh of Onion 'Kappa' is perfect for making onion rings, tasty burger toppings and salads. Late maturing, this superb onion variety has good storage potential. 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 1 days
    •  
    • £1.99