She appears frequently on the BBC's long-running Gardeners' World television programme and has been a regular panellist on Gardeners' Question Time on BBC Radio 4 since 1994.
Greenwood studied at Durham University, where she trained as a botanist.
For eleven years she ran the Royal Horticultural Society's Plant Pathology Department at Wisley.
[1] In 2007, Greenwood made a return visit to Durham University, where she was awarded an honorary doctorate.
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