Sow seeds surface of lightly firmed, moist seed compost in pots or trays and cover with a very light sprinkling of compost or vermiculite. Seal container inside a polythene bag and keep at a temperature of between 59-68 degrees, or place in a cold frame or sheltered position outdoors. After sowing do not exclude light as it helps germination. Keep surface of the compost moist but not waterlogged. Germination can take 1 to 2 months and can be erratic.