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Special Offers

5 Tulip 'Ice Cream' bulbs £3.99 with any order

16 Hyacinth bulbs £3.99 with any order

2 Clematis Jumbo Plug plants £3.99 with orders over £30

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

Just £2.99

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.
5 Reviews
1 packet (30 sweetcorn seeds) £2.99 Despatch: within 3 days
Description Sowing More Info Delivery Reviews
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


Kitchen Garden

Half-hardy

Full sun

Up to 165cm (65in)

Up to 45cm (17.7in)

Easy for all

Easy for all

RHS AGM

1 packet (30 sweetcorn seeds) (24945)

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Sowing Months Flowering Months Harvest Months

Keep well watered, and mulch during dry periods.

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.

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 £1.95.

Orders which include any other products will incur a delivery charge of £4.95.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.90 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.

Satisfaction Guaranteed

For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.

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