Delilah Green Cozy Mystery Books in Order
Part ofFiona Grace Books in OrderFind the Delilah Green Cozy Mystery books in order by Fiona Grace, with summaries, series background, and a clear place to begin.
Last updated: January 14, 2026
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Publication Order
7 books
Sinister Seeds
by Fiona Grace
2025
Delilah Green expects a challenging commission, not sinister seeds of conflict that end in murder. As tensions rise among clients and guests, she pieces together motive and opportunity, using her sharp eye for detail to spot what others miss.
Petal Peril
by Fiona Grace
2025
Petal-level details matter in Delilah Green’s line of work, and they matter even more when a murder needs solving. With suspicion spreading through a closed circle, Delilah uses her knowledge, and her nerve, to protect herself and find the truth.
Fatal Foliage
by Fiona Grace
2025
In a world of collectors and curated gardens, Delilah Green learns that fatal foliage can hide more than pests. When another death puts her in the spotlight, she digs into rivalries and greed to catch the person willing to kill for a rare find.
Deadly Deciduous
by Fiona Grace
2025
A new case pulls Delilah Green into a deadly puzzle where the setting is stunning and the motives are rotten. Following a trail of hints and half-truths, she races to identify the killer before the next victim falls.
Orchid Obsession
by Fiona Grace
2024
Rare plant specialist Delilah Green travels to Madagascar to authenticate a storied orchid, and finds herself in the middle of a murder among wealthy guests. Her botanical know-how, and a budding romance, may be her best tools to unmask the killer.
Lethal Leaves
by Fiona Grace
2024
Delilah Green’s work with rare plants takes her to another beautiful setting, and another suspicious death. As lethal clues pile up, she has to read people as carefully as she reads nature, before the killer prunes the witness list.
Betrayal In Bloom
by Fiona Grace
2024
A glamorous trip turns tense when betrayal blooms around Delilah Green and a new investigation. With secrets rooting deep in the group, Delilah follows the evidence, and her instincts, to find who’s using beauty as camouflage for violence.
Series background & context
Delilah Green is known as the rare plant lady for a reason. Clients seek her out to identify and authenticate the world’s most unusual flora, and her work takes her far beyond the comfort of a hometown routine.
In these mysteries, the scenery changes, but the trouble follows.
The series kicks off with Orchid Obsession, when Delilah travels to Madagascar to authenticate a storied orchid and ends up in the middle of a murder investigation among wealthy guests. From there, each book keeps Delilah on the move, with cases tied to gardens, collectors, and the sort of people who treat nature as a status symbol.
Delilah’s botanical knowledge is more than a quirky detail, it’s how she reads a scene. She notices what’s been handled, what’s been disturbed, and what doesn’t belong. Her work also puts her in rooms where secrets are currency, which means every polite conversation can hide a threat.
Despite the exotic backdrops, the tone stays cozy. The mysteries focus on puzzle-solving, character dynamics, and a warm supporting cast, including a romantic thread that grows as Delilah tries to make space for connection in a life built around travel.
Start with Orchid Obsession for the setup and Delilah’s first case, then follow the later plant-themed titles as she keeps chasing the truth, even when the people around her would rather bury it.
Edited by
Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.
Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.
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