Death in the Orchid Garden - Ann Ripley

Lush with hibiscus, ficus, plumeria, and monkeypod trees, the island of Kauai is the perfect place for Louise to film a few episodes of Gardening with Nature.

After their shoot at the National Tropical Botanical Garden, Louise unwinds
with a sunset walk on the beach. But at the base of a cliff, she makes a
grisly discovery: the battered body of Matthew Flynn, a noted botanist. Her
attempts to save his life are fruitless, and--after seeing his injuries
firsthand--Louise is convinced that his death was no accident.

Now it'll take some serious digging for Louise to unearth more clues, but
she'll have to be very careful, because this is one killer who is ready to
plant her in the ground. . .

"Neatly plotted. . .Ripley's green thumb fans will relish the
paradise island setting and Louise's reliable sleuthing."-- Publishers Weekly