Cabbage : Flowering Northern Lights Mixed F1 Ref: TM01403428 SowingSow in spring for summer bedding or summer (late May or early June) for late summer/autumn planting to replace summer bedding. Sow 1.5mm (1/16in) deep in a good seed compost. Germination takes 14-21 days at 21C (68F).GrowingWhen large enough to handle, transplant to 7.5cm (3in) pots of potting compost. Harden off spring sown plants and plant out 30-45cm (12-18in) apart in the border. Pot up summer sown plants into 13cm (5in) pots and stand out of doors on a sheet of polythene to prevent root penetration into the soil.Aftercare Water regularly and give weak doses of a high Nitrogen fertiliser every 14 days. Plant out in late summer in beds, window boxes, containers, etc.<p>NB: The leaf colour change occurs as the night temperature drops in late summer. In late winter they produce a tall flower spike which makes an unusual floral decoration.FloweringcroppingPlant typeHardy Biennial Price: £2.49 Quantity: