Thompson & Morgan Leek Mercurian 1 Seed Packet (75 Seeds), Green
by Thompson & Morgan

Product Details
- Brand
- Thompson & Morgan
- Colour
- Green
- Condition
- new
- Model
- KA9950
- GTIN
- 05057554102815
- Category
- Flowers
£2.99
Available at Robert Dyas
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Thompson & Morgan Leek Mercurian 1 Seed Packet (75 Seeds), Green by Thompson & Morgan is available for £2.99 at Robert Dyas. Prices last checked on 25 February 2026.
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Description
Tasty and incredibly nutritious Leek ‘Mercurian’ is a reliable cropper with great flavour, excellent nutritional benefits and uniform straight white and tender stems which don’t bulb at the base. The leaves are upright and tend not to droop which means they take up less space on the allotment. Sow these leeks successively from May to July and enjoy a harvest season which lasts throughout autumn and into winter. Perfect for soups, stews and casseroles or simply as a side to your favourite hearty dinners! Sow indoors 4-5 seeds in 5cm pots or used vending cups, or very thinly in a seed tray of good quality seed compost. Cover with 6mm of vermiculite or compost, and maintain at a temperature of 15- 20C until germination, which usually takes 14 -21 days. Once germinated, grow leek plants on in cool conditions. Alternatively, sow thinly directly outside, 1cm deep in drills 30cm apart in soil which has been raked to a fine tilth. Carefully lift when plants are large enough to handle and transplant from mid-June to mid-July at a spacing of 23-25cm apart and 45cm between rows, using a trowel or dibber, and water in. Water the plants thoroughly after planting. Keep watered during dry weather. Earth up the stems during the growing season to increase the length of the blanched stem. High in folic acid, potassium, pro-vitamin A and vitamin C. Position: Full Sun . Height: Up to 45cm when fully established . Spread: Up to 30cm when fully established Supplied as 1 x Leek ‘Mercurian’ Seeds (75 Seeds) Images 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 (e.g. deciduous plants lose leaves in colder months). Features: Enjoy a bountiful harvest with consistent yields Leek 'Mercurian' offers excellent taste for various culinary uses Packed with nutritional benefits, adding health value to your meals Straight, white, and tender stems that don't bulb at the base Takes up less space, making it suitable for smaller gardens or allotments Specifications: Model Number: KA9950
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- Thompson & Morgan Leek Mercurian 1 Seed Packet (75 Seeds), Green by Thompson & Morgan is available for £2.99 at Robert Dyas. Price checked and updated daily.
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