Choose an open sunny site and sow the seed thinly direct outside into finely raked moist warm weed free soil where the plants are to flower 6mm deep Germination takes 10 to 21 days Thin in stages to a final spacing of 23cm apart Alternatively sow in pots indoors at approximate 15 to 20 degree Celsius in a good quality finely sieved moist compost Transplant seedlings spacing them 5cm apart in trays and grow on Plant out after first acclimatizing to outside conditions