Sweetcorn 'Northern Extra Sweet' F1 Hybrid (Supersweet)Zea mays

Half-hardy Annual

What is Half-Hardy Annual?
A plant that completes its entire life cycle (growth, reproduction, death) in one season.
Can be grown outdoors but requires winter protection from frosts and temperatures below 0C.
76% (13 Reviews)

A reliable performer in British summers

One of the earliest maturing

Good quality, well filled cobs

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Height Up to 165cm (65in)
Spread Up to 45cm (17.7in)

Half-hardy Annual

kitchen garden

Full sun

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Sowing Months Flowering Months Harvest Months

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Description
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.

Useful Links:
How to grow sweetcorn from seed
Reasons to buy your seeds from Thompson & Morgan


1 packet (30 sweetcorn seeds) (24945)

Sowing
Sow seeds April to May. Sow seeds 4cm (1 1/2in) 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.

More Info

Keep well watered, and mulch during dry periods.

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 £4.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Reviews

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