When Gill Swanley decides to take up gardening to fight a midlife malaise, she never expected it to become quite such a dangerous hobby.

Pushing herself to 'get out there', Gill picks herself up the secateurs and joins the Bromley Botanists. Here she finds a seven-strong group whose main agenda is how to win the coveted Golden Trowel for best community club of the year. But when a dead body turns up in the community greenhouse, they suddenly have more serious matters to consider than victory.

They must uncover whether their arch-rivals, Croydon, are taking things to another level or whether someone more dangerous is targeting their rag tag group. Can they dig up the truth before someone else is left pushing up the daisies?