Height Up to 45cm (17.7in)
Spread Up to 15cm (5.9in)

Hardy

kitchen garden

Full sun

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Flowering Months Harvest Months

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").

For those looking to grow their own onions, heat-treated sets are a perfect starting point. Heat treating onion sets is the perfect way to get a boost in growing! Whether you're a beginner looking for a strong starting point or seasoned gardener who wants to boost your yield, these heat-treated onions grow larger bulbs and better harvests with minimal risk of premature flowering or 'bolting'. This natural method allows the onions to grow quickly and establish themselves once planted in your garden.

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

Culinary Herb note: Some parts of these plants are edible and can be used as herbs to add flavour and colour to your meals. For more details about edible flowers click here.

Useful links:

Companion Planting?

Pack size info: 250g equates to approximately 75 onion sets.

Show Codes

250g Sets (46529)

1.25kg Sets (Organic) (KC2335)

250g Sets (Organic) (KC2302)

500g Sets (Organic) (KH3989)

1kg Sets (KH7488)

500g Sets (Heat Treated) (KH7091)

250g Sets (Heat Treated) (KH7090)

1000g Sets (Heat Treated) (KH7092)

1kg Sets (Organic) (KH7492)

500g Sets (KC2538)

How to Grow

Plant onion sets in rows in any firm, well drained soil in full sun. Prepare the planting area several weeks in advance by incorporating some well rotted garden compost to improve drainage and soil fertility. Avoid planting onions on freshly manured soil. On particularly wet ground, try growing onion sets in raised beds. When growing onions from sets, plant the bulbs so that the tip of bulb is just protruding through the soil surface. Leave a space of 10cm (4") between each bulb, and 30cm (12") between each row.

For more information and guidance check out our Gardening Guides.

More Info

Onion sets are undemanding and require only occasional watering during particularly dry periods. However, rows should be weeded regularly. Harvest onions in late June and July, a week or two after the leaves begin to turn yellow. Choose a dry day to loosen them from the ground with a fork. Leave them on the soil surface for a day or two until they have fully dried in the sun. Once dry, remove the top foliage and store them in a well ventilated, dry position. Bulbs can be stored for several months.

Delivery

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.

Large Non-standard items may incur a higher, lorry delivery charge. Charges will be calculated at checkout, but an example of the lorry charges are listed below.