Abstract: A plant cup element comprising a number of adjoining plant cups positioned in parallel lines. Each cup includes four planar walls each connected to two adjacent walls along foldable side edges and each cup is of a square cross-section. Two opposite walls of each cup are provided each with a folding line positioned in the middle between the side edges of the wall. Adjoining cups are connected to each other at the corner points of the walls provided with the folding lines. The walls of each cup provided with folding lines collapse in V-form when the plant cup element is pressed together in a direction perpendicular to the remaining unfoldable walls of the cups.