Sutton Seeds's UK sales manager Chris Ramsdem is running in a 10-km race on May 15 in aid of Greenfingers charity.
Mr Chris Ramsden is taking part in the Bupa Great Manchester Run to raise money for Greenfingers.
The 51-year-old who has run in marathons before said: "I am really pleased to have been given this opportunity to personally raise funds for an extremely worthy cause."
Greenfingers hopes Mr Ramsden will raise £7,000 in total from the run.
The charity that was launched in 1998 creates and improves a variety of different gardens at children's hospices across the UK.