Willy Janssens started to make small pots for herbs and other plants, but the planters grew (in size) over the years, especially when he started to work directly with designers and architects. Originally a planter of laurel trees, Willy started making these pots. He began with square shapes (Vierkant means ‘square’ in flemish) after failed attempts to find pots with modern designs to match the architecture of his contemporary home. Bringing in his wife Annette, a fine art teacher, to work on the designs, he established Atelier Vierkant in 1992. He sourced robust German clay that could be fired at high temperatures to make strong, frost-proof vessels, and used natural oxides to create the distinct natural colours.
Later on, his three sons - Bert, Dries and Ward - joined the family business, which has now grown to incorporate a showroom in San Francisco, and an international clientele of which most are architects, and landscape and interior designers attracted by natural look, strength, quality and modern design of the products.