Mulch

MURDER IN HER OWN BACKYARD

Amateur gardener and housewife Louise Eldridge has big plans for her family's new Sylvan Valley home, situated among the flower of suburban Washington, D.C., society. Some Japanese iris here, some skunk cabbage there ... and her own cozy cabin for her horticultural writings. But barely has she turned the topsoil when her organic mulching unearths the unidentifiable remains of a murder victim. Suddenly her elegant garden is a crime scene blighted by garish yellow police tape.

And Louise--cultivating

This is #1 in A Gardening Mystery.