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Sowing Early sowing under glass in trays or modules at 16 °C. Later sowings in a seed bed in shallow drill 1.5cm (½”) deep 20cm (8”) between rows. Planting Glasshouse sowings should be pricked off into trays 5cm (2”) apart as soon as large enough to handle. Thin modules to one seedling per pot/module. Thin outdoor sowings to10cm (4”) apart. Harden off before planting out from mid-May onwards spaced at 45cm (18”) apart when the plants are about 15cm (6”) tall. Other Instructions If subject to long spells of hot sun, bend a few leaves to protect the growing head from the excess heat as this can cause premature formation of poor curds.
Sowing Sow outdoors in a seed bed in rows 1.5cm (1/2”) deep in rows 20cm (9”) apart. . For early crops, sow in pots or trays under glass at 16°C. Planting Thin out the seedlings as they grow to 2.5cm (1”) apart and plant out in permanent site in late May or June 20cm (9”) apart. Glasshouse sowings should be pricked out into trays spacing 5cm (2”) apart, gradually harden off and plant outside as soon as conditions allow. Other Instructions For best result plant in firm ground, dug the previous year. Plant at 45cm (15”) apart for larger sized curds.
Sowing Sow the seeds thinly in a well prepared seed bed outside, 2cm (3/4”) deep with 15cm (6”) between rows. Planting As soon as possible, thin the seedlings to 10cm (4”) apart. When the seedlings have formed 5 or 6 leaves, transplant, taking as much soil as possible, into the growing site 60cm (24”) apart and rows 75cm (30”) apart. Other Instructions Cauliflower plants dislike any check in growth, never allow root area to dry out.