Abstract: An apparatus to water plants made from a pliable and flexible sheet that, in a storage position, comprises a plane. The apparatus includes an elongated main part with a central, longitudinal axis. The main part includes a first arm that extends along a first edge of the main part on a first side of the longitudinal axis, a second arm that extends along a second edge of the main part on a second side of the longitudinal axis, and a foot that extends along the longitudinal axis between the arms. In an operational state of the apparatus, the edges of the main part are bent up and out from the longitudinal axis and the arms are attached to each other to form a bridge over the main part by a releasable fastener such that the main part forms a trough-shaped bottom along the longitudinal axis.