Sow two seeds each into 9cm (3.5") pots of moist, warm, quality compost, pressing them gently into the surface. Place pots in polythene bags to conserve moisture and place in a warm, dark place at approximately 18-21°C (65-70°F). Germination is usually 14-21 days. Remove or transplant the smaller of the two seedlings. Grow on in good light and plant out 90cm (35") apart. Warning: these seeds are poisonous. Wash hands after sowing and remove any seed heads to prevent ripening.