Murder in Bloom — Lesley Cookman

Middle-aged artist-come-investigator Libby Sarjeant's son Adam has uncovered a body with his rotovator in Creekmarsh Place, where he is working as a gardener for TV personality Lewis Osbourne-Walker. The police seem to think there is no connection with the current owner but Libby, naturally, can't just leave it at that. With her psychic friend Fran's mind on other things, Libby has to go it alone. A murder in London inspires the police to dig deeper and Libby, determined to help her new friend Lewis, stirs up more mud than Adam's rotovator.