From Longman Dictionary of Contemporary Englishparterrepar‧terre /pɑːˈteə $ pɑːrˈter/ noun [countable] formal DLGa part of a garden with areas of flowers surrounded by low hedges in a formal pattern
Examples from the Corpus
parterre• By 1859 he could display the results of his experiments with the planting of bulbs in the parterre for a spring display. 