Patent ID: 6851221

Claim:
A plant tray system comprising: a) a flat defining a flat cavity and a flat top opening communicating with the flat cavity, the flat including an upstanding rim surrounding at least a portion of the flat top opening; and b) a plant fray defining a tray cavity and a tray top opening communicating with the tray cavity, the tray cavity having a tray width and a tray length that is greater than the tray width, the plant tray including a collar surrounding at least a portion of the tray top opening, the collar defining a downwardly opening channel; c) wherein the flat is adapted to receive the plant tray in the flat cavity such that the rim is received in the channel and the flat is thereby structurally reinforced by the plant tray to resist flexure; d) wherein the rim includes a plurality of spaced apart, upstanding projections adapted to engage the channel of the plant tray.