Onion Sets Bolt Resistant Collection
Onion Sets Bolt Resistant Collection Onion Sets Bolt Resistant Collection Onion Sets Bolt Resistant Collection Onion Sets Bolt Resistant Collection
Onion Sets Bolt Resistant Collection
Onion Sets Bolt Resistant Collection
Onion Sets Bolt Resistant Collection
Onion Sets Bolt Resistant Collection
Onion Sets Bolt Resistant Collection

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Onion Sets Bolt Resistant Collection

Allium cepa

This exceptional Onion Collection has undergone a 20-week heat treatment to significantly reduce bolting. This process also extends the onions’ growing period, allowing you to achieve much higher yields. Includes varieties Rumba, Corrado, and Karmen.

Marshalls Garden

Save £3 with this value bundle offer

3 x Approx. 65-75 Sets of each variety

10406017

Pre Order Now

Despatched between 1st and 10th of March

£8.97

Was £11.97

Save £3 with this value bundle offer

Save £3 with this value bundle offer. By purchasing these items together, you get the same great quality at a lower price than buying individually. It’s an easy way to get everything you need, while keeping costs down. Great value without compromising on quality.

3-5 Working Days Delivery from £6.99*| Learn More

3-5 Working Days Delivery from £6.99*

Plants £6.99 - All our plants are dispatched directly from our nursery. Plants showing as 'In Stock' on the individual product page will be dispatched next day by our expert nursery team (Sunday to Friday).

We avoid sending plants in the post over the weekend to ensure they arrive with you in the freshest condition.

For 'Pre-Orders' please refer to the estimated delivery date on each product page. Further details can be found in the table below of when we send different plant orders out.

Key Features

Marshalls Garden

Bolt Resistant

Marshalls Garden

High Yield

Marshalls Garden

Stores Well

Product Information

Position:

Full Sun

Suitable for:

Pots, Small Gardens, Vegetable Plot, Raised Bed, Greenhouse

Plant Type:

Annual

Soil Type:

Well drained, fertile, neutral Ph

Complete The Job

Growing Calendar

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Plant outdoors

Plant outdoors

Harvest

Harvest

This fantastic Bolt Resistant Onion Collection has been specifically heat-treated for 20 weeks to minimise bolting. Heat preparation will also extend the growth period of the onions so that much greater yields can be achieved.

Our Bolt Resistant Collection includes:

  • Rumba - A top performing main crop variety that’s ideally suited to growing in the UK. It produces high yields of large, uniform, round onions with a sweet flavour, making it ideal for eating raw in salads as well as cooking. Good thick skin and quality flesh makes this a good variety for long-term storing.
  • Karmen - Red onion ‘Karmen’ is renowned for the exceptionally sweet flavour of its crisp white flesh, delicious eaten raw in salads or cooked. Each layer of the onion is edged in light crimson, so it looks as good as it tastes! This popular red onion stores well and is a valuable addition to any kitchen garden.
  • Corrado - Vigorous, high yielding and disease resistant, Onion ‘Corrado’ produces a plentiful crop of golden yellow bulbs with excellent flavour. The bulbs are firm with strong skins, and will store well.

How To Grow

Prepare your soil: Onions, Shallots, and Garlic prefer an open, sunny site and light, free-draining soil. If you have heavy soil, dig in a generous amount of grit and organic matter into the planting area to aid drainage. Avoid planting them in very heavy or freshly manured soil. Onions are sensitive to acidity, so if you have acidic soil add some Garden Lime to the area well before planting or use our Concentrated Slow-Release Onion, Garlic & Shallot Feed Granules when planting.

Planting: Both Autumn and Spring varieties can be planted straight out into your pre-prepared soil. Loosen soil and dig in some of our Concentrated Slow-Release Feed Granules to add essential nutrients for optimal growth.

Onion & Shallot Sets: Plant Onion and Shallot sets (pointed end upwards) with the tips of the sets showing at the soil surface. 

Onions: These should be spaced 5-10cm (2-4in) apart with 25-30cm (10in to 1ft) between rows. 

Shallots: Should be spaced 15-20cm (6-8in) with 30-45cm (1ft to 18in) between rows. 

Garlic: The Bulbs should be separated into individual cloves and planted pointed end up, so that the tip of each clove is 2cm (1/2in) below the soil surface. Leave 15cm (6in) between individual cloves and 30cm (12in) between the rows. We also recommend covering garlic bulbs in Horticultural Fleece to protect emerging shoots from hungry birds!

 

Guide To Plant Sizes

What to expect when they arrive: Our sets and cloves are suitable for planting out immediately. However, if you’re unable to do so right away, we recommend keeping them in a cool, dark place until you are ready. Sets are sold by weight, so counts may vary slightly to those stated on our website.

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