Poisoned Petals (A Penny Lee Garden Mystery)

Peggy Lee is just about to deliver some endangered sunflowers to Darmus Appleby when a gas explosion blows out his door-and Peggy finds her fellow botanist dead on the kitchen floor. Two weeks later his brother dies, with an overpoweringly sweet purple hyacinth tucked in his pocket. Now Peggy must follow her nose-and some cryptic clues from an internet informant-to root out a killer before he strikes again.