Gardening was the practice of maintaining a garden.

A group of peaceful Sontarans who had crashed on the Moon once took up gardening. Their gardens reminded Abby of the Zen gardens on New Japan. (AUDIO: The Moonrakers)

Nora Wicker and her husband Ernie were both keen gardeners. (AUDIO: The World Tree)

The Twelfth Doctor hated gardening, referring to it as "dictatorship for inadequates". (TV: Heaven Sent)

Xandra Lenea-Ashford didn't know how to garden, so she was mildly confused when the Ninth Doctor gave her a flowerpot and a small spade while she was on holiday in 2003, after he apologised "for the flowerpot". (PROSE: Have You Seen This Man?)