Thompson & Morgan Onion Redlander F1 1 Seed Packet, Purple
by Thompson & Morgan

Product Details
- Brand
- Thompson & Morgan
- Colour
- Purple
- Condition
- new
- Model
- KB4570
- GTIN
- 05057554117277
- Category
- Flowers
£2.99
Available at Robert Dyas
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Thompson & Morgan Onion Redlander F1 1 Seed Packet, Purple by Thompson & Morgan is available for £2.99 at Robert Dyas. Prices last checked on 25 February 2026.
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Description
The world's first downy mildew resistant onion! Onion 'Redlander' offers growers a reliable and rewarding crop of tasty red onions. A result of specialist breeding, this onion has strong performance producing big yields of large, round, Rijnsburder-type bulbs. ‘Redlander’ has a mellow flavour and excellent bulb quality, with great storage potential. Ideal to eat raw or cooked. Height: 45cm (18”). Spread: 15cm (6”)Direct sow onions outdoors in spring on any firm, well-drained soil in full sun. Sow thinly at a depth of 1cm (1/2”) and a distance of 30cm (12”) between rows. 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 onions in raised beds. When large enough to handle, thin onion seedlings to 10cm (4”) apart for medium sized bulbs, or at a slightly wider spacing if larger bulbs are required.Alternatively sow onion seed indoors in module trays at a depth of 1cm (1/2”), using free-draining, seed sowing compost. Place in a propagator or seal container inside a plastic bag at a temperature of 10-15C (50-59F) until after germination which usually takes 10-14 days. Once germinated, grow onions on in cool conditions until all risk of frost has passed and they are large enough to plant outdoors at a distance of 10cm (4”) apart. Cover with a protective netting or fleece to prevent attack from birds and insects. Water the plants thoroughly after planting.Product specifications:. Position: Full Sun. Supplied as 1x Onion 'Redlander' seed packet (approx. 100 seeds)Delivered with growing and care instructionsHarvest period – August to SeptemberImages shown are for guidance only of the expected results from plants upon maturity. Different growing conditions might vary results. Image may be included for illustration of supply but can vary due to seasonality changes. Features: The world's first downy mildew resistant onion! Onion 'Redlander' offers growers a reliable and rewarding crop of tasty red onions A result of specialist breeding, this onion has strong performance producing big yields of large, round, Rijnsburder-type bulbs ‘Redlander’ has a mellow flavour and excellent bulb quality, with great storage potential Supplied as 1x Onion 'Redlander' seed packet (approx. 100 seeds) Supplied with T&M's very own cultural instructions on how to care for your seeds Specifications: Model Number: KB4570
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- Thompson & Morgan Onion Redlander F1 1 Seed Packet, Purple by Thompson & Morgan is available for £2.99 at Robert Dyas. Price checked and updated daily.
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