• 4 for 3

Onion Sets Spring Planting

£8.99

size guide

The height of all of our plants is measured from the base of the pot.

Pot Size Pot Diameter Pot Height
6cm 6cm 5.5cm
9cm 9cm 8.5cm
1 Litre 13cm 11cm
2 Litre 17cm 13cm
3 Litre 19cm 15cm
4 Litre 20cm 17cm
5 Litre 23cm 19cm
7 Litre 25cm 20cm

Please note: the pot sizes listed below may vary due to the suppliers we use.

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  • Our Spring planting onion sets are live low maintenance small immature onions that will grow into full sized ones. These sets are perfect for UK growing in garden vegetable patches or in allotments. They are a reliable way for producing the earliest crop and for growing multiple varieties.

  • Onion sets are undemanding and require only occasional watering during particularly dry periods. Grow them in raised garden planters, containers or allotments in any firm, well draining soil in full sun. Plant in the Spring for harvesting from late Summer to early Autumn. To reduce and deter onion fly it is suggested to grow onions along with mint plants.

  • These onions will be ready for planting when you receive them, however if you are not garden ready yet, ensure you open the paper bag, store in a cool dark spot and keep away from any pests, it is essential they have airflow and avoid any moisture.

  • This listing offers 100 sets of a single named variety, approximately 500 grams in total. Or three lots of 50 sets totalling approximately 750 grams of different varieties. Due to each onion having a varying in weight the total weight may not be exact.

    • Plant genus Allium

    Common Name Onion

    Plant type Herbs, Vegetable Plants

    Foliage type Bulbous, Biennial

    Hardiness Hardy

    Soil acidity Neutral

    Planting aspect South Facing, West Facing, Partial Shade or Sun

    Flower colour White

    Leaf colour Green

    Growth Rate Moderate

    Edible Use Yes

    Planting Companion Carrots, Beetroot, Lettuce

    Light Required Full Sun

    Watering Water regularly while the plant is establishing, then allow the upper soil to dry slightly between waterings. Established Mediterranean herbs prefer free-draining conditions and generally need less water than leafy crops. Container-grown plants will still need checking frequently during warm, dry weather.

    Best Growing Conditions Grow in sun or partial shade in fertile loam, enriched with organic matter where appropriate. Choose an open position with good airflow and enough space for the crop to mature without excessive competition. Protect tender crops from late frost and cold winds, and use greenhouse or sheltered growing conditions where the variety requires extra warmth.

    Christmas Tree Delivery

    FREE on all Pot Grown Trees (2.5ft & over)
    *Mainland UK only
    *Northern Ireland delivery unavailable

    Standard Delivery (2-4 working days) - Evri

    £4.99 on orders under £40
    FREE on orders over £40
    *Mainland UK only

    Next Working Day Delivery - Evri

    £6.99 on orders under £70
    FREE on orders over £70
    Order by 1pm Mon-Fri

    Premium Standard Delivery (2-4 working days) - Royal Mail

    For customers who prefer an alternative carrier, Royal Mail is offered as a premium alternative to our standard Evri service.

    £7.99 on all orders

    Premium Next Working Day Delivery - Royal Mail

    £8.99 on all orders
    *Mainland UK only

    Northern Ireland & Islands Delivery (2-5 working days)

    £6.99 on all orders

    Top tip

    Keep the bed weed-free while plants are young, as alliums compete poorly with vigorous weeds around their shallow roots. It works particularly well in an allotment setting; give it enough space and light to develop naturally rather than crowding it.

    Key Features

    Beginner Friendly

    Beginner Friendly

    Good For Containers

    Good For Containers

    Low Maintenance

    Low Maintenance

    Scented

    Scented

    Season of Interest

    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Planting Harvest