Sow indoors March to May. Sow thinly 0.5cm deep into trays of compost. Water well and place in a warm, light position, away from cold draughts and out of intense, direct sunlight. Keep the compost just moist and be careful not to overwater, the compost should almost dry out before it is watered again. Seedlings should start to appear in approximately 14-28 days. Carefully transplant the seedlings to individual pots when they are large enough to handle and keep moist. In late May or early June, acclimatise plants to outside conditions, avoiding any late frosts. Place pots outside in a sheltered spot during the day and bring them inside again at night when the temperature falls. Do this for a week or two, until the plants have hardened off. Then transplant to a sunny growing position 45cm apart. Plant them deep, right up to the first set of leaves and be sure to firm the young plants in well to prevent them from rocking in the wind, which can damage their delicate roots. Keep the soil moist and remove any weeds as they appear.