No Halloween is complete without a particular orange vegetable. Hong Kong's largest pumpkin is on display at Tai Po Mega Mall until tomorrow. The gigantic pumpkin measures more than one metre across and weighs about 150 kilograms. The pumpkin was grown using innovative farming techniques. The seeds were taken into space on the Shenzhou V spacecraft in 2003 and given a special treatment as the craft returned to Earth. This treatment, and the extreme conditions of the spaceship, caused the seeds to mutate. They can withstand cold weather, pests and diseases. The seeds were planted in a greenhouse in Beijing in March. The pumpkins were given a lot more fertiliser than usual, so they grew at an amazing rate - as much 6kg a day. It only took five months for the pumpkin to grow to its current size. It would have been even bigger if it hadn't been harvested early for the exhibition. The exhibition is free and the public is invited to get up close to the colossal vegetable and take photos. After the exhibition, the pumpkin will be cut up and cooked for local children.