She is known for being a regular panellist on Gardeners' Question Time[1] since 1994, she has also presented television gardening programmes including The Gardens of the Caribbean and The Chelsea Flower Show.
She writes for several magazines and papers including the News of the World and BBC's Gardeners' World Magazine.
In 1986, she left Wisley to work as a freelance gardener and speaker.
She then joined the team on BBC 2's Gardeners' World where she was a regular presenter for five years; subsequently, she has made guest appearances.
Swithinbank is a patron of the charity the British Cactus & Succulent Society.