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Fastest growing tree

The world´s fastest-growing tree is the empress or foxglove tree (Paulownia tomentosa), named after its purple foxglove-like flowers. It can grow 6 m in its first year, and as much as 30 cm in three weeks. Native to central and west China, but naturalised now in the USA, this large species also produces 3-4 times more oxygen during photosynthesis than any other known species of tree.

Fastest growing plant

The world record for the fastest growing plant belongs to certain species of the 45 genera of bamboo, which have been found to grow at up to 91 cm (35 in) per day or at a rate of 0.00003 km/h (0.00002 mph). According to the RHS Dictionary of Gardening, there are approximately 1,000 species of bamboos.  The tallest recorded in the tropics was reportedly 40 m (130 ft), in Europe and the USA 20-30 m (65-98 ft) has been the tallest.

Fastest half marathon in a fireman’s uniform

The fastest half marathon in a full fireman’s uniform is 2 hr 41 sec and was achieved by Stuart Ruston (UK) at the Ironbridge Half Marathon in Telford, Shropshire, UK, on 31 March 2013. Stuart is a fire fighter for the Shropshire Fire and Rescue Service and ran to raise money for ‘The Fire Fighters Charity’ and ‘Help for Heroes’. The official race time was 02:00.41.

Fastest half marathon carrying 40 lb pack

The fastest half marathon carrying a 40 lb pack was 1 hr 36 min 56 sec by Lee Riley (UK) at the Shakespeare Raceway Half Marathon in Stratford-Upon-Avon, UK, on 5 March 2011. Riley would go on to break the full marathon record wearing a 40 lb pack at the Virgin London Marathon just a month later.

Fastest half marathon by a mascot

The fastest half marathon by a mascot is 1 hr 46 min 27 sec and was achieved by David Hiddleston (Canada) at the 2011 Scotiabank Toronto Waterfront Marathon, in Toronto, Ontario, Canada, on 16 October 2011. David was dressed as Jefferson the Dog, the mascot of MyNextRace.com

Fastest half marathon dressed as a vegetable

The fastest half marathon dressed as a vegetable is 1 hr 25 min 59 sec and was achieved by Ronnie Haynes (UK), dressed as a carrot, at the Plymouth Half Marathon in Plymouth, Devon, UK, on 28 April 2013. Ronnie ran the half marathon to raise money for the Motor Neurons Disease Association, a cause close to his heart.