Agatha Raisin and the Potted Gardener

Agatha Raisin has a crush on James Lacey. In order to endear herself to him, s he takes up gardening, hoping to participate with him in the prestigious Carsely Horticultural Contest. But as the contest approaches, plants are being mysteriously uprooted, poisoned, and burned. When the prime suspect turns up dead, Agatha must solve the murder mystery.