Golden Jubilee corn seeds are the highest-yielding, main crop variety for canning or freezing. The tall plants bear 20-25cm (8 1/2-9″) ears that have 16-20 rows of deep, sweet, yellow kernels with a rich corn flavour. If you don’t process or cook the cobs soon after harvest, they only stay sweet for a relatively short time. But cooked fresh, they are sweet and flavourful, and worth waiting for. Make sure that the soil temperature is 15°C (60°F) before planting these untreated corn seeds. Corn is wind pollinated to it needs to be planted in blocks as opposed to single rows. Isolate Golden Jubilee from all other super sweet varieties for the best results.
Matures in 95 to 105 days.
Timing: Direct sow in late spring. If the soil is not warm enough, seeds often rot before sprouting – especially when not treated with fungicide. Untreated corn seeds should be planted only when the soil has warmed up above 18°C (65°F) – warmer for super-sweet (sh2) types, and even warmer for a good stand. Use a soil thermometer. If spring weather is cold, consider planting in flats or individual pots, indoors with bottom heat, for transplanting. Seeds should germinate in 7-10 days. If it rains after planting and corn does not emerge, just re-plant the area.
Starting: Do not soak corn seeds prior to planting. Plant 2-5cm (1-2″) deep (shallower for sh2 seed or in cool soil). Sow seeds around 7.5cm (3″) apart, in rows 60-90cm (24-36″) apart. Because corn is wind pollinated, plant in a dense block of at least 4 rows, rather than in single rows. This increases the chance of corn pollen, which emerges from male flowers at the growing tip, to fall down onto the receptive female silks that extend from each corn cob.
Growing: Ideal pH: 5.8-6.8. Corn is a heavy feeder, so add manure or compost, and use 500g (1 lb) of complete organic fertilizer per 6m (60′) of row, mixing it thoroughly into the soil beneath each seed furrow. Thin to at least 20-25cm (8-10″) apart in the row. Large eared and double-eared varieties need to be 30cm (24″) apart. Keep free of weeds until knee-high, and then leave it alone.
Use the days to maturity listed for comparative purposes among the varieties only – every garden may be different.
Pests: Wireworms are a pest in home gardens and may burrow into the seeds. Loopers are pale olive-green caterpillars up to 2.5cm (1″) long. They chew into the centre of young corn plants and can kill the plant if the growing tip is damaged. Seed corn maggot is a small, legless maggot that attacks germinating seed. Planting in warm soil or using predatory nematodes may help prevent seed-destroying soil creatures.
Approx. 45 seeds
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