Pippa Greenwood is a British plant pathologist. She appears frequently on the BBC's long running Gardeners World television programme and has been a regular panelist on Gardeners' Question Time on BBC Radio 4 since 1994. She studied at Durham University, where she trained as a botanist. She then went on to gain an MSc in crop protection at Reading University. For eleven years she ran the Royal Horticultural Society's Plant Pathology Department at Wisley. In 2007, she made a return visit to Durham University, where she was awarded an honorary doctorate.