Presenter biographies: G to H

Pippa Greenwood trained as a botanist at Durham University (BSc hons) and then gained an MSc in Crop Protection at Reading University. In 1985 she joined the staff of The Royal Horticultural Society at their garden in Wisley, Surrey, where she ran their garden advice desk – answering several thousand written/telephone queries from gardeners.

Pippa started working at the BBC in 1988. Initially she appeared on Reflections of Gold, transmitted during the Chelsea Flower Show week. She has also presented items on plant pests and disease problems on Gardeners' World.

Pippa is a regular panellist on BBC Radio 4's Gardeners' Question Time and in 2000 presented a series called Growing Science along with her own mini series of radio programmes called Pippa's Pests she has now embarked on her own series Top Soil With Pippa Greenwood, a live weekend programme for BBC Radio Solent.

Pippa has also been a guest on a number of television and radio programmes including This Morning, GMTV, Call my Bluff, Grass Roots, You and Yours and Woman's Hour.

Pippa also writes for the BBC Gardeners' World magazine.

Trained as a horticulturalist and a landscape architect, Bunny Guinness is well known for her achievments as a designer. Her gardens won five gold medals at the RHS Chelsea Flower Show between 1994 and 1999. Bunny returned to the Chelsea Flower Show in 2004 with her 'Boat Race Garden' which celebrated the 175th anniversary of the Oxford and Cambridge University boat race.

Bunny has appeared on several television programmes, including Gardener's Gardens and in her own series, Guinness in the Garden and is a regular panellist on BBC Radio 4's Gardeners' Question Time.