Denise Godfrey manufactures air purifiers. Not the kind that need to be plugged in—the kind that need to be watered. Godfrey helps her parents run Olive Hill Greenhouses in Fallbrook, from which a wide and many-hued variety of plants are sent forth to help brighten homes, home offices, commercial offices, and many other indoor spaces with the intention of bringing pleasure to the eye and to the lungs. Tony and Sue Godfrey founded Olive Hill in 1973; Denise, their daughter, went to work for them in 2000.