Sow March-April for greenhouse growing (or April for outdoors) in a propagator on a windowsill or pots or trays in a greenhouse at 18-21°C (65-70°F) using a quality compost. Cover seeds with 6mm (¼") sieved compost. Germination 8-12 days. Transplant seedlings singly into 7.5cm (3") pots. Grow on, finally planting into large pots, grow bags or direct into the greenhouse border; or outdoors 45cm (18") apart when frost risk has passed. Feed regularly and sideshoot as necessary. Sowing - Cropping: 17-19 weeks.