Sweetcorn 'Picnic'Zea mays

Sow sweetcorn seeds from April to May in 7cm (3") pots of free draining seed compost at a depth of 4cm (1 1/2"). Place in a propagator or seal the container inside a polythene bag at temperature of 18-24C (64-75F) until after germination which takes 7-10 days. After germination, grow sweetcorn plants on in cooler conditions until large enough to plant outdoors. When all risk of frost is passed, gradually acclimatise sweetcorn plants to outdoor conditions over 7-10 days before transplanting into fertile, well drained soil in full sun, with shelter from winds. The flowers of sweet corn are wind pollinated and should therefore be planted in blocks rather than rows to ensure good pollination. Allow at a distance of 30cm (12") between each plant.

Alternatively direct sow sweetcorn seeds outdoors in May once the soil has warmed, at a depth of 4cm (1 1/2") and a distance of 45cm (18") apart. Sow 2 seeds per hole and thin out the weakest seedling per station after germination.

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 £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 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.