Agatha Raisin and the Potted Gardener — M.C. Beaton

Never say die. That's the philosophy Agatha Raisin clings to when she comes home to cozy Carsely and finds a new woman ensconced in the affections of her attractive bachelor neighbor, James Lacey. The beautiful newcomer, Mary Fortune, is superior in every way, especially when it comes to gardening. And Agatha, that rose with many thorns, hasn't a green thumb to her name.

With garden Open Day approaching, she longs for a nice juicy murder to remind James of her genius for investigation. And sure enough, a series of destructive assaults on the finest gardens is followed by an appalling murder. Agatha seizes the moment and immediately starts yanking up village secrets by their roots and digging up all the dirt on the victim. Problem is, Agatha has an awkward secret of her own....