"A parterre is a formal garden constructed on a level substrate, consisting of plant beds, typically in symmetrical patterns, which are separated and connected by paths. ...
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The borders of the plant beds may be formed with stone or tightly pruned hedging, and their interiors may be planted with flowers or other plants or filled with mulch or gravel. The paths are constituted with gravel or turf grass.
French parterres originated in the gardens of the French Renaissance of the 15th century and often had the form of knot gardens. Later, in the 17th century Baroque garden, they became more elaborate and stylised. The French parterre reached its greatest development at the Palace of Versailles, which inspired many similar parterres throughout Europe." - (en.wikipedia.org 10.10.2021)