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 17 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

Leek 'Pennine' F1 Hybrid

Allium porrum

From British breeding comes the first - and only - hybrid pot leek. The result of painstaking work in crossing sterile male lines with top prize-winning show leeks. Leek 'Pennine' is a much thicker, but shorter blanch with a true pot leek appearance. This autumn variety is ideally grown in individual 25cm (10") pots or in well-prepared soil in the garden, where it will withstand adverse conditions right up until New Year. Height: 45cm (18"). Spread: 30cm (12"). More info
    • 1 packet (40 leek seeds)

    • Despatch: Within 1 days
    •  
    • £3.19 £0.99

Onion 'Performer' (Bunching Onion)

Allium fistulosum, Oriental Bunching Onion, Spring Onion, Scallion

Bunching onion 'Performer' produces upright, dark green leaves and mild flavoured stems which do not bulb. Use this perennial onion as a spring onion to add to salads or chopped as a chive-like garnish with a mild flavour. This winter hardy variety can be harvested virtually year round from successional sowings. Height: 30cm (12"). Spread: 23cm (9").


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


Useful links:

Companion PlantingHow to grow Onions


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (300 onion seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Spring Onion 'Apache' - RHS endorsed vegetable seeds

Allium cepa, Spring Onion 'Deep Purple', Bunching Onion, Scallion

Salad Onion Apache (Deep Purple) is an attractive deep purple-red skinned spring onion with a mild flavour and a crisp texture. The purple outer skin merges with the silver when peeled, adding a colour contrast to salads. Salad Onion Apache is ideal for growing in containers, or outdoors throughout the season.

These vegetable seeds are endorsed by the RHS.
More info
    • 1 packet (450 spring onion seeds)

    • Despatch: Within 1 days
    •  
    • £2.69

Onion 'Ishikura' (Bunching Onion)

Allium fistulosum, Oriental Bunching Onion, Spring Onion, Scallion

This perennial oriental bunching onion doesn't produce bulbs but forms clumps of elongated, straight white stems similar spring onions. Alternatively the stems can be earthed up to produce leek-like stems. Onion 'Ishikura' can be harvested when pencil-thin or left to grow as thick as a mature carrot. This RHS AGM variety has a remarkably long harvest period from June to October without the need for successive sowings. Height: 30cm (12"). Spread: 23cm (9").


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


Useful links:

Companion PlantingHow to grow Onions


Culinary note: Some parts of these flowers are edible. For more details about edible flowers click here.

More info
    • 1 packet (375 onion seeds)

    • Despatch: Within 1 days
    •  
    • £2.99

Leek 'Nipper'

Allium porrum

This British bred variety is fast growing, making it ideal for harvesting as 'baby leeks' just 10 weeks after sowing. Sow them thickly and lift the leeks as they reach spring onion size for a delicious 'out of season' crop. With a milder flavour than spring onions, Leek 'Nipper' makes a fabulous addition to stir fries and salads. Height: 35cm (14"). Spread: 20cm (8"). More info
    • 1 packet (250 leek seeds)

    • Despatch: Within 1 days
    •  
    • £1.99

Spring Onion 'Lilia' (Red Onion)

Allium cepa, Bunching Onion, Scallion

A dual purpose Italian variety with a pungent flavour. Spring Onion Lilia is best grown as a salad onion with nice, dark green leaves and a shiny, intense red inner core. Onion Lilia can also be grown as a maincrop, storing bulb onion. When fully mature it shows off its defined red and white inner rings.
More info
    • 1 packet (500 spring onion seeds)

    • Despatch: Within 1 days
    •  
    • £0.99

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

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
    •  
    • £0.99

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

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 - RHS endorsed vegetable seeds

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.

These vegetable seeds are endorsed by the RHS.
More info
    • 1 packet (500 spring onion seeds)

    • Despatch: Within 1 days
    •  
    • £2.99