An upright planting apparatus includes a row of juxtaposed mesh pipe units disposed uprightly and a fixing unit. Each of the mesh pipe units includes an outer mesh pipe, and a liquid supply pipe. The outer mesh pipe has an upright tubular wall formed with a plurality of mesh holes extending through inner and outer surfaces of the upright tubular wall, and a groove that extends around said outer surface of the upright tubular wall to receive a plant culture medium. The liquid supply pipe is disposed axially inside the outer mesh pipe and has a plurality of liquid-seeping holes. The fixing unit fixes together the outer mesh pipes of the mesh pipe units.