This is the really big one, regularly producing monsters up to and over 300kg. If you want to win the local pumpkin growing competition or just grow a huge one for halloween then this is the one to grow. To grow really big pumpkins restrict to one fruit and feed regularly with high potassium fertiliser.
Sow late March to May in a propagator on a windowsill in a greenhouse/house at approximately 20-25°C (68-78°F) using a quality compost. Cover seeds with 19mm (¾”) compost (Germination 5-8 days). Grow on, planting out when frost risk has passed, 120cm (4′) between plants each way. Alternatively sow outside May/June, 2 seeds per station. Thin to strongest seedling. Restrict fruits to 3-4 per plant. To grow really big pumpkins restrict to one fruit and feed regularly with potassium fertiliser. Grows best in rich soil. Water and feed regularly. Sowing to Cropping: 18-22 weeks.