Thompson & Morgan
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Sweetcorn 'Northern Extra Sweet' F1 Hybrid (Supersweet)

Zea mays

Half-hardy Annual

A reliable performer in British summers, Sweetcorn Northern Extra Sweet is especially suited to cooler northern districts. One of the earliest maturing of the 'supersweets', Sweetcorn Northern Extra Sweet produces good quality, well filled cobs up to 20cm (8in) long. Sturdy plants but growing only to 150 to 180cm (5 to 6 feet) tall.

Ideal For:
kitchen garden
Flowering Period:
July, August
Sowing Months:
April, May
Position:
full sun
    • 1 packet (30 sweetcorn seeds)

    •  
    • Despatch:
    • £2.99
    • Out of stock
Sow seeds April to May. Sow seeds 4cm (1½in) deep in 7.5cm (3in) pots of free draining compost. Place in a propagator or seal container inside a polythene bag and place at 18-20C (64-68F) until after germination which takes 7-10 days. Do not exclude light, as this helps germination.Can also be sown direct outdoors once the soil has warmed, sow 2 seeds 5cm (2in) deep, 23cm (9in) apart, and in rows 45cm (18in) apart. Thin out to the strongest seedling.

Gradually acclimatise to outdoor conditions for a few days before planting out after all risk of frost.

Keep well watered, and mulch during dry periods.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above.

Despatch: Within 24 hours applies to orders placed online from Sunday to Thursday. Orders placed online on Friday or Saturday will be despatched on Monday. Please note that for Bank Holiday weekends, orders placed Friday to Sunday will be despatched on Tuesday.

Plants, bulbs, corms, tubers, shrubs, trees, potatoes etc are delivered at the appropriate time for planting and will be stated on the product page or in your order acknowledgement page and email.


Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.


Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.

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