Raised Bed Garden and Micro Greenhouse System

A hollow rail for containing soil or sand, comprising,

• an elongated vertical wall member with opposite vertical side surfaces, first and second opposite ends, and elongated top and bottom surfaces, with connecting means for hingedly connecting each end of said rail to another similar rail,
• with one end having one hinge element and the opposite end having two hinge elements,
• and with the hinge element on the end having only one hinge element having a vertical hole with an integrated bushing,
• said bushing extending only partially into the vertical hole from both ends.

A method for manufacturing a rail comprising an elongated vertical wall member with opposite vertical side surfaces, first and second opposite ends, and elongated top and bottom surfaces, with connecting means for hingedly connecting each end of said rail to another similar rail, comprised of the steps of:

• a mold closing around a parison of material,
• the material being blown against the edges of the mold by air pressure,
• connecting means formed by an action in the mold which moves to create a walled vertical bore, said action moving before, during, or after the air pressure blows the material against the edges of the mold,
• with the action moving only part way into the bore, such that the interior wall of the bore extends only partly into the bore from either end.

An insulated, heated, raised bed garden system, comprised of rails, connectors, a heater, and insulation,

• said rails having an elongated vertical wall member with opposite vertical side surfaces, first and second opposite ends, and elongated top and bottom surfaces, with connecting means for hingedly connecting each end of said rail to another similar rail,
• said connectors fitting inside the hingedly connecting means of two or more rails and joining them together hingedly,
• said insulation comprised of one or more sheets of insulating material which fit together to cover the inside bottom of a set of rails and connectors arranged in the shape of a regular polygon,
• said heater consisting of an electrical resistance heating element arrayed in a plane and sized to fit inside a set of rails and connectors arranged in the shape of a regular polygon.