Showing Pick Your Poison by Leann Sweeney

Out of school, out of work, and out of motivation, Abby Rose is contemplating her life and wondering what to do next. It's the kind of situation that would get some girls down, but luckily Abby's got a heart the size of Texas-and a bank account to match. But when she discovers the gardener dead in her greenhouse, Abby realizes what she needs to do with herself: she needs to solve a murder...