Hedger began a career as an apprentice jockey but was forced to give up riding after a serious fall in 1965.
He subsequently worked as a horsebox driver before taking out a permit to train his own horses at his stable near Chichester in 1981.
He returned to Britain in 2009 and resumed training from a stable in Hampshire before his final retirement in 2020.
His biggest training victory came in 1991 when Al Asoof won the National Spirit Hurdle and other major successes came in the John Smith's Silver Cup Stakes and Great Jubilee Handicap.
Former jockey Leighton Aspell paid tribute to him, saying "I have very fond memories of Peter, he was a really good guy.