In the past, Les Cent-Vergées belonged to theAbbey of Mont-Saint-Michel, and its inhabitants used to raise peat. In other words, the surface of the soil was harvested and dried for use as fuel. This peaty moor is made up of heather andgorse, which turn purple and gold depending on the season. The natural heritage here is very rich, combining species typical of peat bogs with those of wet moorland and woodland. A rare and protected species is the round-leaved sundew, an insectivorous plant 2 to 5 cm in diameter.
![An insectivorous plant, 2 to 5 cm in diameter, the round-leaved sundew (Drosera rotundifolia) is one of the most remarkable species to be found on the Cent Vergées peat moor.](https://www.tourisme-granville-terre-mer.com/app/uploads/granville/2023/10/thumbs/lande-cent-vergees-drosera-feuilles-rondes-640x480.jpg)