A plant cage kit includes a wire grid, a bottom ring, and a top ring. The wire grid has a plurality of first and second spaced-apart wires. Each of the second wires is coupled to each of the first wires to form the wire grid. The first end of each second wire is formed into a loop and the second end of each second wire is formed into a hook. The hook of each second wire engages the loop of the same second wire when the plant cage kit is in the assembled configuration. When the plant cage kit is in the shipping configuration, the plurality of first wires is generally positioned in a first plane such that wire grid has a generally flat shape. The bottom and top rings have a generally U-shaped cross-section portion forming respective channels.