Using a good quality moist seed compost sow your seeds in a propagator and cover with a light sprinkling of soil place on a windowsill or in a greenhouse at approximate 18 to 21 degree Celsius to germinate usually 14 to 21 days Do not exclude light as this helps germination Transfer seedlings when large enough to handle into seed trays 5cm apart and grow on in good light Gradually acclimatize to outside conditions before planting out 25cm apart after all risk of frost has passed