{"product_id":"sweet-corn-northern-extra-sweet-seeds","title":"Sweet Corn Northern Extra Sweet Seeds","description":"\u003ch2\u003e\u003cspan\u003eSweet Corn Northern Extra Sweet Seeds\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eSweet Corn Northern Extra Sweet Seeds produce golden-yellow cobs filled with tender, sweet kernels. This \u003c\/span\u003e\u003cspan\u003eextra-sweet sweetcorn variety\u003c\/span\u003e\u003cspan\u003e is suited to growing in the UK's shorter summer season, making it a useful choice for gardeners in cooler regions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNorthern Extra Sweet Sweetcorn\u003c\/span\u003e\u003cspan\u003e produces upright plants with well-filled cobs that are best harvested fresh, when the kernels are juicy and at their sweetest. The cobs can be boiled, steamed, grilled or roasted and are particularly enjoyable when cooked shortly after picking.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSweetcorn grows best in a warm, sunny and sheltered position with fertile soil. Plants should be grown in blocks rather than single rows to encourage good wind pollination and well-developed cobs. Northern Extra Sweet is suitable for kitchen gardens, allotments and vegetable plots where there is room to grow several plants together.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eProduces golden-yellow cobs with tender, sweet kernels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eExtra-sweet sweetcorn variety\u003c\/span\u003e\u003cspan\u003e suited to shorter growing seasons.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for growing in cooler UK regions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUpright plants producing well-filled cobs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUseful for boiling, steaming, grilling and roasting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBest harvested fresh for sweetness and flavour.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for kitchen gardens and allotments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGrow in blocks to encourage good pollination.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eHow to Grow Sweet Corn Northern Extra Sweet Seeds\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSow Sweet Corn Northern Extra Sweet Seeds indoors from \u003c\/span\u003e\u003cspan\u003eApril to May\u003c\/span\u003e\u003cspan\u003e in deep pots or modules filled with good-quality seed compost.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSow seeds approximately \u003c\/span\u003e\u003cspan\u003e2–3cm deep\u003c\/span\u003e\u003cspan\u003e, placing one seed in each module, and maintain a temperature of around \u003c\/span\u003e\u003cspan\u003e18–21°C\u003c\/span\u003e\u003cspan\u003e during germination.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKeep the compost lightly moist but not waterlogged. Seedlings generally appear within \u003c\/span\u003e\u003cspan\u003e7–14 days\u003c\/span\u003e\u003cspan\u003e, depending on temperature and growing conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGrow young plants on in bright, frost-free conditions. Sweetcorn dislikes root disturbance, so take care when transplanting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGradually \u003c\/span\u003e\u003cspan\u003eharden plants off\u003c\/span\u003e\u003cspan\u003e before planting outdoors after all risk of frost has passed, usually from late May or early June.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlternatively, sow seeds directly outdoors from \u003c\/span\u003e\u003cspan\u003elate May to early June\u003c\/span\u003e\u003cspan\u003e once the soil has warmed sufficiently.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eChoose a \u003c\/span\u003e\u003cspan\u003esunny, sheltered position with fertile, well-drained soil\u003c\/span\u003e\u003cspan\u003e. Incorporate well-rotted compost or organic matter before planting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlant sweetcorn in \u003c\/span\u003e\u003cspan\u003eblocks rather than single rows\u003c\/span\u003e\u003cspan\u003e, allowing approximately \u003c\/span\u003e\u003cspan\u003e40–45cm between plants\u003c\/span\u003e\u003cspan\u003e. Growing in blocks helps the wind carry pollen between plants, encouraging better cob development.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWater regularly during dry periods, particularly when the tassels and silks are developing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHarvest cobs when the silks have turned brown and the kernels release a \u003c\/span\u003e\u003cspan\u003emilky liquid when pressed\u003c\/span\u003e\u003cspan\u003e. This indicates that the sweetcorn is ready for picking.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSweet Corn Growing Tips\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eChoose a warm, sunny position sheltered from strong winds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGrow plants in blocks to improve wind pollination.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAvoid disturbing the roots when transplanting seedlings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKeep plants well watered during flowering and cob development.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMulch around plants to help retain soil moisture.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCheck cobs regularly as they approach maturity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHarvest when kernels are full and release a milky liquid when pressed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCook or refrigerate cobs soon after harvesting to maintain their sweetness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKeep extra-sweet varieties isolated from other sweetcorn types with incompatible genetics to help maintain eating quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIs Northern Extra Sweet suitable for growing in the UK?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes, Northern Extra Sweet is suited to the UK's growing conditions, including areas with relatively short summer seasons.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen should Northern Extra Sweet Seeds be sown?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSow indoors from April to May or directly outdoors from late May to early June once the soil has warmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhy should sweetcorn be planted in blocks?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSweetcorn is wind-pollinated. Growing plants in blocks rather than single rows helps improve pollination and encourages well-filled cobs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHow do I know when sweetcorn is ready to harvest?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe silks usually turn brown, and a kernel releases a milky liquid when pressed. Clear liquid suggests the cob is immature.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCan Northern Extra Sweet be grown in containers?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSweetcorn is generally better suited to open ground or large raised beds because several plants are needed for reliable pollination.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDoes sweetcorn need plenty of water?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes, regular watering is particularly important during flowering, pollination and cob development.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCan Northern Extra Sweet be grown alongside other sweetcorn varieties?\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eExtra-sweet sweetcorn varieties can lose eating quality if cross-pollinated by incompatible sweetcorn types. Grow them separately or choose varieties that flower at different times.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePerfect For\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eKitchen gardens\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAllotments\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eVegetable plots\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRaised beds\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCooler UK growing regions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFresh summer harvesting\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGrilling and roasting\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eHome cooking\u003c\/span\u003e\u003c\/p\u003e","brand":"JustSeed","offers":[{"title":"40 seeds","offer_id":3573159591976,"sku":"VEGSCNEXS001","price":1.99,"currency_code":"GBP","in_stock":true},{"title":"200 seeds","offer_id":3573159624744,"sku":"VEGSCNEXS002","price":7.95,"currency_code":"GBP","in_stock":true},{"title":"1000 seeds","offer_id":3573159657512,"sku":"VEGSCNEXS003","price":27.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1109\/3566\/files\/dreamstime_s_9082503.jpg?v=1794474704","url":"https:\/\/justseed.com\/products\/sweet-corn-northern-extra-sweet-seeds","provider":"JustSeed","version":"1.0","type":"link"}