Plant tray made of plastic, comprising a plurality of compartments (3) designed to accommodate at least one planting pot (2). At least one of the compartments (3) has a bottom with at least one bottom hole (4, 11), said bottom transitioning at the edges into walls (6) of the plant tray (1), forming, on the lower face, a support surface (14) for the plant tray (1), and, on the upper face, at least one support for the planting pot (2). The bottom defines bottom regions of different height with respect to a plane of support as a result of a channel (8) that is formed on the lower face as a watering and/or draining channel. A compartment region which is located immediately above the lower bottom region (7) forming the support surface (14) can be watered and/or drained through the bottom hole (4, 11), the lower bottom region (7) forming at least part of the support. The invention also relates to a system comprising a plant tray.
