Sow in a propagator on a windowsill or in a greenhouse at approximately 15-20°C (60-68°F), 6mm (¼") deep, in a good quality, firmed, moist compost. Germination 14-30 days.Transplant seedlings into pots or trays 5cm (2") apart and grow on. Acclimatise plants gradually before planting direct into containers which should be situated in a sunny, well sheltered position. Provide support for climbing stems.