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.
 
Onion : Marco F1 Hybrid

Onion 'Marco' F1 Hybrid

Allium cepa

This maincrop onion produces round, thin necked, straw coloured bulbs with good disease tolerance. Onion ‘Marco’ is superb for storing, remaining in good condition right through to March. This RHS AGM variety reliably produces heavy yields with bulbs achieving a good size in most soils. Height: 45cm (18”). Spread: 10cm (4”).


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


Useful links:

Companion Planting 

 More info
    • 1 packet (250 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.19
Onion : Red Baron

Onion 'Red Baron'

Allium cepa

A mid-late maturing variety, Onion ‘Red Baron’ produces firm, flattish-round bulbs of a beautiful dark red colour. With eye-catching red rimmed flesh and a stronger flavour than most varieties, this RHS AGM variety makes an attractive addition to salads. An excellent cropping red onion with 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 Planting 

 More info
    • 1 packet (175 seeds)

    • Despatch: Within 2 Days
    •  
    • £2.49
Onion : Sturon

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 Planting 

 More info
    • 1 packet (300 seeds)

    • Despatch: Within 2 Days
    •  
    • £1.99