groundsman: someone who maintains the grounds (of an estate or park or athletic field)
whole: an assemblage of parts that is regarded as a single entity
magnoliidae: a group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most primitive extant flowering plants; contains 36 families including Magnoliaceae and Ranunculaceae; sometimes classified as a superorder