A few years ago I discovered a wonderful UK cozy mystery series about two women with a gardening/landscaping business who inevitably find themselves caught up in a murder mystery. They're the "heroines of horticulture." It's wonderful because it combines two of my favourite things: mystery and gardens!
I'm sharing an episode first aired September 2003 called The Language of Flowers wherein Rosemary Boxer and Laura Thyme are hired to invigorate and repair a water cascade on the grounds of the Caldecott estate. Through some research, Rosemary reveals the meanings of several of the flowers used in the design of the cascade, the knowledge of which helps them solve the mystery and find a murderer.
BTW, you will surely want the entire series after watching this episode! Cheers!