Thompson & Morgan

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Onion, Shallot & Garlic Sets


In this range you'll find spring-planting, autumn-planting and heat-treated varieties. Spring-planting varieties will give you a crop during June and July and autumn-planting varieties will be ready a few weeks earlier. Spring is such a busy time and planting onions and garlic in the autumn to overwinter gives you one less job to in spring! Heat-treated onions are less likely to bolt (run to seed) on planting, which occurs particularly in red varieties.



We have found 46 products.
 

Onion 'Setton' (Spring Planting)

Allium cepa

Spring planting.

An improvement on the popular traditional variety 'Sturon' with a more uniform shape, higher yields and better storage potential. This RHS Award of Garden Merit holder also has good skin quality and an excellent flavour. 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
    • 75 onion sets

    • Despatch: By end of January 2017
    •  
    • £3.99
    • 150 onion sets

    • Despatch: By end of January 2017
    • SAVE *49p  
    • £7.98 £7.49

Shallot 'Gourmet Collection' (Spring Planting)

Allium cepa (Aggregatum Group)

Spring planting.

This superb collection of gourmet shallots can be planted in spring for excellent yields of high quality bulbs. These delicious shallots make a milder alternative to onions in the kitchen. Perfect for adding a delicate sweet flavour to stews and casseroles. Height: 35cm (14"). Spread: 15cm (6").

  • Collection comprises:
  • Shallot 'Golden Gourmet' - Large, good quality bulbs with reduced bolting incidence and excellent storage potential.
  • Shallot 'Red Gourmet' - A new development in red shallots to produce a deeper more oval bulb with pale pink-tinged, crisp white flesh.

Useful links:

Companion PlantingHow to grow Onions

More info
    • 40 shallot sets - 20 of each variety

    • Despatch: By end of November 2016
    • SAVE *£2.99  
    • £12.98 £9.99

Shallot 'Golden Gourmet' (Spring planting)

Allium cepa (Aggregatum Group)

Spring planting.

This is a major advance on the traditional variety 'Giant Yellow'. RHS AGM variety Shallot 'Golden Gourmet' produces larger and better quality bulbs with reduced bolting incidence. The lovely golden brown skinned bulbs store well throughout the winter. Pack size: Approx. 500g. Approx. 20 sets. Height 35cm (14"). Spread: 15cm (6").


Useful links:

Companion PlantingHow to grow Onions

More info
    • 20 shallot sets

    • Despatch: By end of November 2016
    •  
    • £5.99

Onion 'Sturon' (Spring Planting)

Allium cepa

Spring planting.

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").


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


Useful links:

Companion Planting

More info
    • 75 onion sets

    • Despatch: By end of January 2017
    •  
    • £3.99
    • 150 onion sets

    • Despatch: By end of January 2017
    • SAVE *49p  
    • £7.98 £7.49

Shallot 'Red Gourmet' (Spring Planting)

Allium cepa (Aggregatum Group)

Spring planting.

A new development in red shallots to produce a deeper more oval shaped bulb. Shallot 'Red Gourmet' produces good yields with pale pink-tinged, crisp white flesh. This colourful variety has good storage potential. Height: 35cm (14"). Spread: 15cm (6").


Useful links:

Companion PlantingHow to grow Onions

More info
    • 20 shallot sets

    • Despatch: By end of November 2016
    •  
    • £5.99

Onion Mixed Red,White & Brown (Spring/Autumn Planting)

Allium cepa

 Customer Rating

Autumn planting. Heat treated.

This popular mix of 3 favourite varieties is perfect for gardeners with limited space, who want to grow a range of onion colours to suit their culinary needs. These varieties have been heat treated to reduce bolting risk on planting, which occurs particularly in red varieties. Height: 45cm (18"). Spread: 15cm (6").


  • Collection comprises 3 easily identifiable colours:
  • Onion 'Electric' (red) - An overwintering variety producing shiny red skinned, semi globe shaped bulbs with crisp, pink-tinged flesh.
  • Onion 'Silvermoon' (white) - Attractive white-skinned and fleshed variety. Maincrop maturity for harvesting in August and good storage potential.
  • Onion 'Tornado' (brown) - Mild flavour, good for overwintering and tolerant of drought and excellent resistance to bolting.

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


Useful links:

Companion PlantingHow to grow Onions


More info
    • 75 onion sets

    • Despatch: By end of September 2016
    •  
    • £3.99
    • 150 onion sets

    • Despatch: By end of September 2016
    • SAVE *99p  
    • £7.98 £6.99

Onion 'Rosanna' (Spring Planting)

Allium cepa

  • Introduced exclusively by T&M

Spring planting. Heat treated.

A distinctive and appealing reddish brown skinned, semi-globe shaped bulb with stunning pink rings when sliced. Subtle and less pungent than many varieties, Onion 'Rosanna' is ideal for all culinary uses, from cooked dishes to salads and sandwiches. 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
    • 75 onion sets

    • Despatch: By end of March 2017
    •  
    • £3.99
    • 150 onion sets

    • Despatch: By end of September 2016
    • SAVE *99p  
    • £7.98 £6.99

Onion 'Red Baron' (Spring Planting)

Allium cepa

 Customer Rating
  • Easy to grow

Spring planting. Heat treated.

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
    • 75 onion sets

    • Despatch: By end of March 2017
    •  
    • £3.99
    • 150 onion sets

    • Despatch: By end of March 2017
    • SAVE * 99p  
    • £7.98 £6.99

Onion 'Golden Ball' (Spring Planting)

Allium cepa

Spring planting. Heat treated.

A very popular and reliable variety, giving heavy yields of golden-brown skinned, crisp, flavoursome bulbs. Onion 'Golden Ball' has excellent storage potential too. This variety has been heat treated to reduce bolting risk on planting. 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
    • 75 onion sets

    • Despatch: By end of March 2017
    •  
    • £3.99
    • 150 onion sets

    • Despatch: By end of March 2017
    • SAVE *99p  
    • £7.98 £6.99

Onion 'Red Arrow' (Spring Planting)

Allium cepa

Spring planting. Heat treated.

Onion 'Red Arrow' comes from specific British breeding of early red onions and replaces Onion 'Red Emperor'. With rosy red skins and pink tinged flesh, this early variety makes a colourful contribution to many culinary dishes. These heat treated onion sets will start to crop from late July. Onion 'Red Arrow' resists bolting and will store well for up to 8 weeks after harvesting. 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
    • 75 onion sets

    • Despatch: By end of March 2017
    •  
    • £4.99
    • 150 onion sets

    • Despatch: By end of March 2017
    • SAVE *£1.99  
    • £9.98 £7.99

Onion 'Vulcan' (Spring Planting)

Allium cepa

Spring planting. Heat treated.

British breeding of early brown onions has developed this new, fully heat-treated variety which is an earlier-ripening hybrid. The golden skinned, deep, rounded bulbs of Onion 'Vulcan' have firm flesh and store well, for up to 12 weeks after harvesting. This onion produces early crops from late July onwards. 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
    • 75 onion sets

    • Despatch: By end of March 2017
    •  
    • £4.99
    • 150 onion sets

    • Despatch: By end of March 2017
    • SAVE *£1.99  
    • £9.98 £7.99

Onion 'Early Collection' (Spring Planting)

Allium cepa

  • Introduced exclusively by T&M

Spring planting. Heat treated.

From British breeding, these three onion varieties complete their heat treatment by the end of January so they can be despatched and planted from early February to produce the earliest crops of the season. Heat treatment reduces the risk of bolting on planting, which commonly occurs in red varieties. The perfect combination of brown and red onions to fulfil all your culinary needs.


  • Collection comprises:
  • Onion 'Red Arrow' - An early red onion with rosy red skins and pink tinged flesh, which makes a colourful contribution to many culinary dishes.
  • Onion 'Vulcan' - An earlier-ripening onion hybrid. The golden skinned, deep, rounded bulbs have firm flesh and store well, for up to 12 weeks after harvesting.
  • Onion 'Spitfire' - An early brown onion, producing good yields of medium-sized, globed-shaped bulbs, with crisp white flesh.

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


Useful links:

Companion Planting

More info
    • 225 onion sets - 75 of each variety

    • Despatch: By end of March 2017
    • SAVE *£4.98  
    • £14.97 £9.99
    • 450 onion sets - 150 of each variety

    • Despatch: By end of March 2017
    • SAVE *£8.98  
    • £23.97 £14.99