Packet Content (approx.): 50
Sweetcorn is a fairly problem free crop. It will grow on most free draining, moisture retentive soils, but hates heavy clay soils as it produces deep roots.
Plant about 3mm (1/8in) deep, in small pots using seed starting compost. Water lightly and keep consistently moist until germination occurs. Tomato seeds usually germinate within 5 -10 days when kept in the optimum temperature range of 21-27°C (70-80°F). As soon as they emerge, place them in a location that receives a lot of light and a cooler temperature (60-70°F); a south-facing window should work.
Once seedlings reach 8cm tall they can be planted out. Unlike most vegetable Sweetcorn is better planted in blocks rather than rows, as this promotes successful pollination of the female flowers which produce cobs. Poor pollination can lead to missing kernels in cob rows. An ideal spacing for a block of sweetcorn is 45cm x 45cm.
Once established keep the bed weed free, and feed fortnightly with a feed recommended for tomatoes. Earthing up around the stems will encourage supporting roots essential for crops grown in windy locations. Water in periods of dry weather, this is especially important at the time of flowering.
A single sowing of early, mid and late varieties can give a longer harvest period extending the harvest by 2-3 weeks. Sweetcorn takes on average 14-16 weeks from sowing to harvest.
To encourage pollination of the silks, female flowers, tapping the tassels or male flowers, helps pollen to fall and pollinate flowers to produce cobs.
It is advised to grow super sweet varieties separately from standard sweetcorn as cross pollination can cause a reduction in taste of the super sweet varieties.
As they are hungry feeders, feed them every 14 days with a potash rich fertilizer. Keep well watered but do not wet the fruit.
Harvest: September to November. Pick fruit regularly to prolong cropping.
Suitable for the vegetable garden, allotments and containers.
Be prepared to water well and supplement feed with high-potash feed during season.