Abstract: A disassembleable portable cold frame apparatus including a rigid tray having a recessed area formed thereon; a plurality of planar rigid side plates removably interconnected together in an end-to-end configuration to thereby create a border bounding a ground holding space and with the border positioned within the recessed area of the tray; and a rigid transparent cover enclosing an air space and with the cover disposed upon and removably hingably coupled to the border to place the air space in communication with the ground holding space.